def instantiate(self, wr_chn, rd_chn, glb_depth, chn_per_word):
self.wr_chn = wr_chn
self.rd_chn = rd_chn
self.chn_per_word = chn_per_word
self.name = 'ifmap_glb'
self.stat_type = 'show'
self.raw_stats = {'size' : (glb_depth, chn_per_word), 'rd': 0, 'wr': 0}
self.sram = SRAM(glb_depth, chn_per_word, name=self.name)
self.last_read = Channel(3, name='last_read')
self.image_size = (0, 0)
self.filter_size = (0, 0)
self.fmap_sets = 0
self.full_fmap_sets = 0
self.fmap_per_iteration = 0
self.curr_set = 0
self.fmap_idx = 0
self.iteration = 0
self.tile_in = 0
self.tile_out = 0
self.wr_done = False
self.task_done = True
def instantiate(self, dram_wr_chn, noc_wr_chn, rd_chn, glb_depth,
block_size, num_nonzero):
self.dram_wr_chn = dram_wr_chn
self.noc_wr_chn = noc_wr_chn
self.rd_chn = rd_chn
self.name = 'psum_glb'
self.block_size = block_size
self.num_nonzero = num_nonzero
self.stat_type = 'show'
self.raw_stats = {'size': (glb_depth, block_size), 'rd': 0, 'wr': 0}
self.sram = SRAM(glb_depth, block_size, nports=2, dtype=np.float16)
self.last_read = Channel(3)
self.filter_size = (0, 0)
self.fmap_sets = 0
self.fmap_per_iteration = 0
self.rd_set = 0
self.fmap_rd_idx = 0
self.iteration = 0
self.wr_set = 0
self.fmap_wr_idx = 0
self.wr_done = False
def instantiate(self, dram_wr_chn, noc_wr_chn, rd_chn, glb_depth,
chn_per_word):
self.dram_wr_chn = dram_wr_chn
self.noc_wr_chn = noc_wr_chn
self.rd_chn = rd_chn
self.chn_per_word = chn_per_word
self.name = 'psum_glb'
self.stat_type = 'show'
self.raw_stats = {'size': (glb_depth, chn_per_word), 'rd': 0, 'wr': 0}
self.sram = SRAM(glb_depth, chn_per_word, nports=2, name=self.name)
self.last_read = Channel(3, name='last_read')
self.filter_size = (0, 0)
self.fmap_sets = 0
self.fmap_per_iteration = 0
self.rd_set = 0
self.fmap_rd_idx = 0
self.iteration = 0
self.wr_set = 0
self.fmap_wr_idx = 0
self.wr_done = False
def instantiate(self, wr_chn, rd_chn, glb_depth, chn_per_word):
self.wr_chn = wr_chn
self.rd_chn = rd_chn
self.chn_per_word = chn_per_word
self.glb_depth = glb_depth
self.name = 'ifmap_glb'
self.stat_type = 'show'
self.raw_stats = {
'size': (glb_depth, chn_per_word),
'ifmap_glb_rd': 0,
'ifmap_glb_wr': 0
}
self.sram = SRAM(glb_depth, chn_per_word)
self.last_read = Channel(3)
self.image_size = (0, 0)
self.filter_size = (0, 0)
self.fmap_sets = 0
self.fmap_per_iteration = 0
self.curr_set = 0
self.fmap_idx = 0
self.iteration = 0
self.wr_done = False
def instantiate(self, wr_chn, rd_chn, glb_depth, block_size):
self.wr_chn = wr_chn
self.rd_chn = rd_chn
self.name = 'weight_glb'
self.filter_size = (0, 0)
self.image_size = (0, 0)
self.wr_done = False
self.iteration = 0
self.addr = 0
self.in_chn = 0
self.out_chn = 0
#self.arr_y = 0
#self.out_sets = 0
self.block_size = block_size
self.sram = SRAM(glb_depth, block_size)
self.last_read = Channel(3)
self.stat_type = 'show'
self.raw_stats = {'size': (glb_depth, block_size), 'rd': 0, 'wr': 0}
def instantiate(self, wr_chn, rd_chn, arr_y, glb_depth, block_size,
num_nonzero):
self.wr_chn = wr_chn
self.rd_chn = rd_chn
self.arr_y = arr_y
self.block_size = block_size
self.num_nonzero = num_nonzero
self.name = 'ifmap_glb'
self.stat_type = 'show'
self.raw_stats = {'size': (glb_depth, num_nonzero), 'rd': 0, 'wr': 0}
self.sram = SRAM(glb_depth, num_nonzero * 3)
self.last_read = Channel(3)
self.glb_depth = glb_depth
self.image_size = (0, 0)
self.filter_size = (0, 0)
self.fmap_sets = 0
self.fmap_per_iteration = 0
self.curr_set = 0
self.fmap_idx = 0
self.iteration = 0
self.wr_done = False
# For managing convolution
self.curr_x = 0
self.curr_y = 0
self.curr_chn = 0
self.request_idx = 0
self.send_idx = 0
#self.curr_filt_x = 0
#self.curr_filt_y = 0
self.ifmap_done = False
self.needed_addr = 0
self.ready_to_output = False # ready to output a filter_size block of inputs
self.curr_data = [0 for i in range(3 * num_nonzero)]
self.data_idx = num_nonzero # block other operations while actively working through data
class PSumGLB(Module):
def instantiate(self, dram_wr_chn, noc_wr_chn, rd_chn, glb_depth,
chn_per_word):
self.dram_wr_chn = dram_wr_chn
self.noc_wr_chn = noc_wr_chn
self.rd_chn = rd_chn
self.chn_per_word = chn_per_word
self.name = 'psum_glb'
self.stat_type = 'show'
self.raw_stats = {'size': (glb_depth, chn_per_word), 'rd': 0, 'wr': 0}
self.sram = SRAM(glb_depth, chn_per_word, nports=2, name=self.name)
self.last_read = Channel(3, name='last_read')
self.filter_size = (0, 0)
self.fmap_sets = 0
self.fmap_per_iteration = 0
self.rd_set = 0
self.fmap_rd_idx = 0
self.iteration = 0
self.wr_set = 0
self.fmap_wr_idx = 0
self.wr_done = False
def configure(self, filter_size, fmap_sets, fmap_per_iteration):
self.wr_done = False
self.filter_size = filter_size
self.fmap_sets = fmap_sets
self.fmap_per_iteration = fmap_per_iteration
self.rd_set = 0
self.fmap_rd_idx = 0
self.iteration = 0
self.wr_set = 0
self.fmap_wr_idx = 0
self.wr_done = False
def tick(self):
num_iteration = self.filter_size[0] * self.filter_size[1]
if not self.wr_done:
# Write to GLB
if self.dram_wr_chn.valid():
data = self.dram_wr_chn.pop()
self.raw_stats['wr'] += 1
# print "psum_glb wr"
# Write ifmap to glb
# print "ifmap_to_glb: ", in_sets, self.fmap_idx, self.curr_set
addr = self.fmap_sets * self.fmap_wr_idx + self.wr_set
self.wr_set += 1
self.sram.request(WR, addr, data, port=0)
if self.wr_set == self.fmap_sets:
self.wr_set = 0
self.fmap_wr_idx += 1
if self.fmap_wr_idx == self.fmap_per_iteration:
# Done initializing ifmaps and psums
# self.sram.dump()
self.fmap_wr_idx = 0
self.wr_done = True
else:
# Read from GLB and deal with SRAM latency
# print self.rd_chn.vacancy(1), self.rd_chn.rd_ptr.rd(), self.rd_chn.wr_ptr.rd()
if self.rd_chn.vacancy(1) and self.iteration < num_iteration:
addr = self.fmap_sets * self.fmap_rd_idx + self.rd_set
# print "psum req glb", self.iteration, self.fmap_rd_idx, self.rd_set
self.sram.request(RD, addr, port=0)
self.last_read.push(False)
self.rd_set += 1
if self.rd_set == self.fmap_sets:
self.rd_set = 0
self.fmap_rd_idx += 1
if self.fmap_rd_idx == self.fmap_per_iteration:
self.fmap_rd_idx = 0
self.iteration += 1
# Process the last read sent to the GLB SRAM
if self.last_read.valid():
is_zero = self.last_read.pop()
data = [0]*self.chn_per_word if is_zero else \
[e for e in self.sram.response()]
self.rd_chn.push(data)
self.raw_stats['rd'] += 1
# print "psum rd glb", data
# If we can pull an elemnt off of the write channel, do it
# and write it into the location specificed by the current
# fmap_Sets, fmap_wr_idx, and wr_set!
if self.noc_wr_chn.valid():
# print "psum_to_glb: ", self.fmap_wr_idx, self.wr_set
data = self.noc_wr_chn.pop()
self.raw_stats['wr'] += 1
addr = self.fmap_sets * self.fmap_wr_idx + self.wr_set
# print "psum wr glb", self.fmap_wr_idx, self.wr_set, data
self.wr_set += 1
self.sram.request(WR, addr, data, port=1)
if self.wr_set == self.fmap_sets:
self.wr_set = 0
self.fmap_wr_idx += 1
if self.fmap_wr_idx == self.fmap_per_iteration:
# Done initializing ifmaps and psums
# self.sram.dump()
self.fmap_wr_idx = 0
class IFMapGLB(Module):
def instantiate(self, wr_chn, rd_chn, glb_depth, chn_per_word):
self.wr_chn = wr_chn
self.rd_chn = rd_chn
self.chn_per_word = chn_per_word
self.name = 'ifmap_glb'
self.stat_type = 'show'
self.raw_stats = {'size' : (glb_depth, chn_per_word), 'rd': 0, 'wr': 0}
self.sram = SRAM(glb_depth, chn_per_word, name=self.name)
self.last_read = Channel(3, name='last_read')
self.image_size = (0, 0)
self.filter_size = (0, 0)
self.fmap_sets = 0
self.full_fmap_sets = 0
self.fmap_per_iteration = 0
self.curr_set = 0
self.fmap_idx = 0
self.iteration = 0
self.tile_in = 0
self.tile_out = 0
self.wr_done = False
self.task_done = True
def configure(self, image_size, filter_size, fmap_sets, full_fmap_sets, tiles_out, fmap_per_iteration):
self.wr_done = False
self.curr_set = 0
self.fmap_idx = 0
self.iteration = 0
self.image_size = image_size
self.filter_size = filter_size
self.fmap_sets = fmap_sets
self.full_fmap_sets = full_fmap_sets
self.fmap_per_iteration = fmap_per_iteration
self.tiles_out = tiles_out
self.tile_in = 0
self.tile_out = 0
self.task_done = False
def tick(self):
num_iteration = self.filter_size[0]*self.filter_size[1]
offset_x = (self.filter_size[0] - 1)//2
offset_y = (self.filter_size[1] - 1)//2
filter_x = self.iteration % self.filter_size[0] - offset_x
filter_y = self.iteration // self.filter_size[0] - offset_y
tiles_in = self.full_fmap_sets // self.fmap_sets
if self.task_done:
return
if not self.wr_done:
# Write to GLB
if self.wr_chn.valid():
data = self.wr_chn.pop()
# print "ifmap_glb wr"
# Write ifmap to glb
# print "ifmap_to_glb: ", in_sets, self.fmap_idx, self.curr_set
addr = self.full_fmap_sets*self.fmap_idx + self.curr_set
self.curr_set += 1
self.sram.request(WR, addr, data)
self.raw_stats['wr'] += len(data)
if self.curr_set == self.full_fmap_sets:
self.curr_set = 0
self.fmap_idx += 1
if self.fmap_idx == self.fmap_per_iteration:
# Done initializing ifmaps and psums
# self.sram.dump()
self.fmap_idx = 0
self.wr_done = True
else:
did_read = False
# Read from GLB and deal with SRAM latency
if self.rd_chn.vacancy(1) and self.iteration < num_iteration and self.tile_in < tiles_in:
fmap_x = self.fmap_idx % self.image_size[0]
fmap_y = self.fmap_idx // self.image_size[0]
ifmap_x, ifmap_y = (fmap_x + filter_x, fmap_y + filter_y)
if (ifmap_x < 0) or (ifmap_x >= self.image_size[0]) or \
(ifmap_y < 0) or (ifmap_y >= self.image_size[1]):
# print "ifmap req zero", self.iteration, self.fmap_idx
self.last_read.push(True)
else:
fmap_idx = (ifmap_y*self.image_size[0]) + ifmap_x
addr = self.fmap_sets*(fmap_idx*tiles_in+self.tile_in) + self.curr_set
# print "ifmap req glb", self.iteration, self.fmap_idx
self.sram.request(RD, addr)
self.raw_stats['rd'] += self.chn_per_word
self.last_read.push(False)
did_read = True
self.curr_set += 1
if self.curr_set == self.fmap_sets:
self.curr_set = 0
self.fmap_idx += 1
if self.fmap_idx == self.fmap_per_iteration:
self.fmap_idx = 0
self.iteration += 1
# Process the last read sent to the GLB SRAM
if self.last_read.valid():
is_zero = self.last_read.pop()
data = [0]*self.chn_per_word if is_zero else \
[e for e in self.sram.response()]
# print "ifmap rd glb", data
self.rd_chn.push(data)
elif not did_read:
if self.iteration == num_iteration:
self.iteration = 0
self.tile_in += 1
if self.tile_in == tiles_in:
self.tile_in = 0
self.tile_out += 1
if self.tile_out == self.tiles_out:
self.tile_out = 0
self.task_done = True
class WeightsGLB(Module):
def instantiate(self, wr_chn, rd_chn, glb_depth, chn_per_word):
self.wr_chn = wr_chn
self.rd_chn = rd_chn
self.chn_per_word = chn_per_word
self.name = 'weight_glb'
self.stat_type = 'show'
self.raw_stats = {'size' : (glb_depth, chn_per_word), 'rd': 0, 'wr': 0}
self.sram = SRAM(glb_depth, chn_per_word, name=self.name)
self.last_read = Channel(3, name='last_read')
self.filter_size = (0, 0)
self.in_sets = 0
self.out_sets = 0
self.curr_set = 0
self.fmap_idx = 0
self.iteration = 0
self.tile = 0
self.wr_done = False
def configure(self, filter_size, in_sets, out_sets):
self.wr_done = False
self.filter_size = filter_size
self.in_sets = in_sets
self.out_sets = out_sets
self.tile = 0
self.stuff = []
def tick(self):
num_iteration = self.filter_size[0]*self.filter_size[1]
if not self.wr_done:
# Write to GLB
if self.wr_chn.valid():
data = self.wr_chn.pop()
# print "ifmap_glb wr"
# Write ifmap to glb
# print "ifmap_to_glb: ", in_sets, self.fmap_idx, self.curr_set
addr = self.in_sets*(self.out_sets*self.iteration+self.fmap_idx) + self.curr_set
self.stuff.append(data)
self.curr_set += 1
self.sram.request(WR, addr, data)
self.raw_stats['wr'] += len(data)
if self.curr_set == self.in_sets:
self.curr_set = 0
self.fmap_idx += 1
if self.fmap_idx == self.out_sets:
# Done initializing ifmaps and psums
# self.sram.dump()
self.fmap_idx = 0
self.iteration += 1
if self.iteration == num_iteration:
self.iteration = 0
self.wr_done = True
else:
did_read = False
# Read from GLB and deal with SRAM latency
if self.rd_chn.vacancy(1) and self.iteration < num_iteration:
addr = self.in_sets*(self.out_sets*self.iteration+self.fmap_idx) + self.curr_set
# print "ifmap req glb", self.iteration, self.fmap_idx
self.sram.request(RD, addr)
self.raw_stats['rd'] += self.chn_per_word
self.last_read.push(False)
did_read = True
self.curr_set += 1
if self.curr_set == self.in_sets:
self.curr_set = 0
self.fmap_idx += 1
if self.fmap_idx == self.out_sets:
self.fmap_idx = 0
self.iteration += 1
# Process the last read sent to the GLB SRAM
if self.last_read.valid():
is_zero = self.last_read.pop()
data = [0]*self.chn_per_word if is_zero else \
[e for e in self.sram.response()]
# print "ifmap rd glb", data
self.rd_chn.push(data)
elif not did_read:
if self.iteration == num_iteration:
self.iteration = 0
self.wr_done = False
class IFMapGLB(Module):
def instantiate(self, wr_chn, rd_chn, glb_depth, chn_per_word):
self.wr_chn = wr_chn
self.rd_chn = rd_chn
self.chn_per_word = chn_per_word
self.name = 'ifmap_glb'
self.stat_type = 'show'
self.raw_stats = {'size' : (glb_depth, chn_per_word), 'ifmap_glb_rd': 0, 'ifmap_glb_wr': 0}
self.sram = SRAM(glb_depth, chn_per_word)
self.last_read = Channel(3)
self.image_size = (0, 0)
self.filter_size = (0, 0)
self.fmap_sets = 0
self.fmap_per_iteration = 0
self.curr_set = 0
self.fmap_idx = 0
self.iteration = 0
self.wr_done = False
def configure(self, image_size, filter_size, fmap_sets, fmap_per_iteration):
self.wr_done = False
self.image_size = image_size
self.filter_size = filter_size
self.fmap_sets = fmap_sets
self.fmap_per_iteration = fmap_per_iteration
self.read_ctr = 0
def tick(self):
num_iteration = self.filter_size[0]*self.filter_size[1]
offset_x = (self.filter_size[0] - 1)//2
offset_y = (self.filter_size[1] - 1)//2
filter_x = self.iteration % self.filter_size[0] - offset_x
filter_y = self.iteration // self.filter_size[0] - offset_y
if not self.wr_done:
# Write to GLB
if self.wr_chn.valid():
data = self.wr_chn.pop()
self.raw_stats['ifmap_glb_wr'] += len(data)
# print "ifmap_glb wr"
# Write ifmap to glb
addr = self.fmap_sets*self.fmap_idx + self.curr_set
# print("ifmap_to_glb: fmap idx, curr set, addr ", self.fmap_idx, self.curr_set, addr)
self.curr_set += 1
self.sram.request(WR, addr, data)
if self.curr_set == self.fmap_sets:
self.curr_set = 0
self.fmap_idx += 1
if self.fmap_idx == self.fmap_per_iteration:
# Done initializing ifmaps and psums
# self.sram.dump()
self.fmap_idx = 0
self.wr_done = True
else:
# Read from GLB and deal with SRAM latency
if self.rd_chn.vacancy(1) and self.iteration < num_iteration:
self.read_ctr += 1
#print("ifmap glb read ctr ", self.read_ctr)
fmap_x = self.fmap_idx % self.image_size[0]
fmap_y = self.fmap_idx // self.image_size[0]
ifmap_x, ifmap_y = (fmap_x + filter_x, fmap_y + filter_y)
if (ifmap_x < 0) or (ifmap_x >= self.image_size[0]) or \
(ifmap_y < 0) or (ifmap_y >= self.image_size[1]):
# print("ifmap req zero: iter, fmap idx ", self.iteration, self.fmap_idx)
self.last_read.push(True)
else:
fmap_idx = (ifmap_y*self.image_size[0]) + ifmap_x
addr = self.fmap_sets*fmap_idx + self.curr_set
# print("addr fmap idx, addr: ", fmap_idx, addr)
#print("ifmap req glb: iter, fmap idx, addr ", self.iteration, self.fmap_idx, addr)
self.sram.request(RD, addr)
self.last_read.push(False)
self.curr_set += 1
if self.curr_set == self.fmap_sets:
self.curr_set = 0
self.fmap_idx += 1
if self.fmap_idx == self.fmap_per_iteration:
# print("fmap idx, fmap per iter: ", self.fmap_idx, self.fmap_per_iteration)
self.fmap_idx = 0
self.iteration += 1
# Process the last read sent to the GLB SRAM
if self.last_read.valid():
is_zero = self.last_read.pop()
data = [0]*self.chn_per_word if is_zero else \
[e for e in self.sram.response()]
#print("ifmap rd glb", data, self.iteration)
self.rd_chn.push(data)
self.raw_stats['ifmap_glb_rd'] += len(data)
class IFMapGLB(Module):
def instantiate(self, wr_chn, rd_chn, glb_depth, chn_per_word):
self.wr_chn = wr_chn
self.rd_chn = rd_chn
self.chn_per_word = chn_per_word
self.glb_depth = glb_depth
self.name = 'ifmap_glb'
self.stat_type = 'show'
self.raw_stats = {
'size': (glb_depth, chn_per_word),
'ifmap_glb_rd': 0,
'ifmap_glb_wr': 0
}
self.sram = SRAM(glb_depth, chn_per_word)
self.last_read = Channel(3)
self.image_size = (0, 0)
self.filter_size = (0, 0)
self.fmap_sets = 0
self.fmap_per_iteration = 0
self.curr_set = 0
self.fmap_idx = 0
self.iteration = 0
self.wr_done = False
def configure(self, image_size, filter_size, fmap_sets,
fmap_per_iteration):
self.wr_done = False
self.image_size = image_size
self.filter_size = filter_size
self.fmap_sets = fmap_sets
self.fmap_per_iteration = fmap_per_iteration
self.curr_tile = 0
self.num_tiles = 4
self.addr = 0
print("ifmap glb_size: ", self.glb_depth)
def tick(self):
num_iteration = self.filter_size[0] * self.filter_size[1]
offset_x = (self.filter_size[0] - 1) // 2
offset_y = (self.filter_size[1] - 1) // 2
filter_x = self.iteration % self.filter_size[0] - offset_x
filter_y = self.iteration // self.filter_size[0] - offset_y
if not self.wr_done:
# Write to GLB
if self.wr_chn.valid():
data = self.wr_chn.pop()
self.raw_stats['ifmap_glb_wr'] += len(data)
# print "ifmap_glb wr"
# Write ifmap to glb
addr = self.fmap_sets * self.curr_tile + self.curr_set + self.fmap_idx * self.num_tiles
#print ("ifmap_to_glb: ", self.curr_tile, self.fmap_idx, addr)
self.curr_set += 1
self.sram.request(WR, addr, data)
if self.curr_set == self.fmap_sets:
self.curr_set = 0
self.curr_tile += 1
if self.curr_tile == self.num_tiles:
# Done initializing ifmaps and psums
# self.sram.dump()
self.curr_tile = 0
self.fmap_idx += 1
if self.fmap_idx == self.fmap_per_iteration:
self.wr_done = True
else:
if self.rd_chn.vacancy(1) and self.addr < self.glb_depth:
# Read from GLB and deal with SRAM latency
self.sram.request(RD, self.addr)
#print ("read_ifmap_glb: ", self.addr)
self.addr += 1
self.last_read.push(False)
# Process the last read sent to the GLB SRAM
if self.last_read.valid():
#print ("ifmap_glb_to_noc")
is_zero = self.last_read.pop()
data = [e for e in self.sram.response()]
# print "ifmap rd glb", data
self.rd_chn.push(data)
self.raw_stats['ifmap_glb_rd'] += len(data)
def instantiate(self, ifmap_wr_chn, ifmap_rd_chn, weights_wr_chn, weights_rd_chn,\
arr_y, ifmap_glb_depth, weights_glb_depth, \
block_size, num_nonzero):
self.ifmap_wr_chn = ifmap_wr_chn
self.ifmap_rd_chn = ifmap_rd_chn
self.weights_wr_chn = weights_wr_chn
self.weights_rd_chn = weights_rd_chn
self.arr_y = arr_y
self.block_size = block_size
self.num_nonzero = num_nonzero
self.name = 'ifmap_weights_glb'
self.in_chn = 0
self.out_chn = 0
self.stat_type = 'show'
self.raw_stats = {
'size': (ifmap_glb_depth, num_nonzero * 3),
'rd': 0,
'wr': 0
}
self.isram = SRAM(ifmap_glb_depth, num_nonzero * 3, dtype=np.float16)
self.ilast_read = Channel(3)
self.ifmap_glb_depth = ifmap_glb_depth
self.wsram = SRAM(weights_glb_depth, block_size, dtype=np.float16)
self.wlast_read = Channel(1)
# Channel depth of one here prevents SRAM reads from colliding
# was having issues with a later read 'replacing' an earlier one
# and thus getting the wrong data
# having only one extant write on an SRAM at a time prevents this
self.weights_glb_depth = weights_glb_depth
# Channel to hold indices of weights that need to be sent
# to NoC
self.weights_to_send = Channel(3)
self.image_size = (0, 0)
self.filter_size = (0, 0)
self.fmap_sets = 0
self.fmap_per_iteration = 0
self.curr_set = 0
self.fmap_idx = 0
self.iteration = 0
self.iwr_done = False
self.wwr_done = False
# For managing convolution
self.curr_x = 0
self.curr_y = 0
self.curr_chn = 0
self.request_idx = 0
self.send_idx = 0
#self.curr_filt_x = 0
#self.curr_filt_y = 0
self.ifmap_done = False
# for weights
self.addr = 0
self.base_addr = 0 # to store values from self.weights_to_send
self.base_addr_wo_chn = -1 # to keep track of current position within 3x3 filter
# invalid weights and inputs to use at the end to flush out last outputs
self.weights_to_flush = 0
self.inputs_to_flush = 0
self.needed_addr = 0
self.ready_to_output = False # ready to output a filter_size block of inputs
self.curr_data = [0 for i in range(3 * num_nonzero)]
self.curr_weights = [0 for i in range(block_size)]
self.data_idx = num_nonzero # block other operations while actively working through data
class IFMapWeightsGLB(Module):
def instantiate(self, ifmap_wr_chn, ifmap_rd_chn, weights_wr_chn, weights_rd_chn,\
arr_y, ifmap_glb_depth, weights_glb_depth, \
block_size, num_nonzero):
self.ifmap_wr_chn = ifmap_wr_chn
self.ifmap_rd_chn = ifmap_rd_chn
self.weights_wr_chn = weights_wr_chn
self.weights_rd_chn = weights_rd_chn
self.arr_y = arr_y
self.block_size = block_size
self.num_nonzero = num_nonzero
self.name = 'ifmap_weights_glb'
self.in_chn = 0
self.out_chn = 0
self.stat_type = 'show'
self.raw_stats = {
'size': (ifmap_glb_depth, num_nonzero * 3),
'rd': 0,
'wr': 0
}
self.isram = SRAM(ifmap_glb_depth, num_nonzero * 3, dtype=np.float16)
self.ilast_read = Channel(3)
self.ifmap_glb_depth = ifmap_glb_depth
self.wsram = SRAM(weights_glb_depth, block_size, dtype=np.float16)
self.wlast_read = Channel(1)
# Channel depth of one here prevents SRAM reads from colliding
# was having issues with a later read 'replacing' an earlier one
# and thus getting the wrong data
# having only one extant write on an SRAM at a time prevents this
self.weights_glb_depth = weights_glb_depth
# Channel to hold indices of weights that need to be sent
# to NoC
self.weights_to_send = Channel(3)
self.image_size = (0, 0)
self.filter_size = (0, 0)
self.fmap_sets = 0
self.fmap_per_iteration = 0
self.curr_set = 0
self.fmap_idx = 0
self.iteration = 0
self.iwr_done = False
self.wwr_done = False
# For managing convolution
self.curr_x = 0
self.curr_y = 0
self.curr_chn = 0
self.request_idx = 0
self.send_idx = 0
#self.curr_filt_x = 0
#self.curr_filt_y = 0
self.ifmap_done = False
# for weights
self.addr = 0
self.base_addr = 0 # to store values from self.weights_to_send
self.base_addr_wo_chn = -1 # to keep track of current position within 3x3 filter
# invalid weights and inputs to use at the end to flush out last outputs
self.weights_to_flush = 0
self.inputs_to_flush = 0
self.needed_addr = 0
self.ready_to_output = False # ready to output a filter_size block of inputs
self.curr_data = [0 for i in range(3 * num_nonzero)]
self.curr_weights = [0 for i in range(block_size)]
self.data_idx = num_nonzero # block other operations while actively working through data
# send one data point at a time (of num_nonzero)
def configure(self, image_size, filter_size, in_chn, out_chn,
fmap_per_iteration):
self.wr_done = False
self.image_size = image_size
self.filter_size = filter_size
self.in_chn = in_chn
self.out_chn = out_chn
self.fmap_per_iteration = fmap_per_iteration
# For managing convolution
self.curr_x = 0
self.curr_y = 0
self.curr_chn = 0
self.request_idx = 0
self.send_idx = 0
self.curr_filt_x = 0
self.curr_filt_y = 0
self.curr_filt_set = 0
self.ifmap_done = False
offset_x = (self.filter_size[0] - 1) // 2
offset_y = (self.filter_size[1] - 1) // 2
# The first address needed to be filled in order to start sending
#self.needed_addr = (self.image_size[0]*(1+offset_y) + 1+offset_x) *\
# (self.in_chn // self.block_size) - 1
self.needed_addr = (self.image_size[0]*(offset_y) + 1+offset_x) *\
(self.in_chn // self.block_size) - 1
# Goes high to transfer sram control to output
# Doing them synchronously would be better, but complicates things
self.ready_to_output = False
def tick(self):
# WEIGHTS-------------------------------------------------------------------
num_iterations = self.image_size[0] * self.image_size[
1] * self.in_chn // self.block_size
max_addr = self.filter_size[0] * self.filter_size[
1] * self.in_chn * self.out_chn // self.block_size
verbose = False
if not self.wwr_done:
if self.weights_wr_chn.valid():
data = self.weights_wr_chn.pop()
self.raw_stats['wr'] += len(data)
#print(self.addr)
#print("weights (iw glb) at addr {}".format(self.addr))
#print(data)
#print(self.addr)
self.wsram.request(WR, self.addr, np.asarray(data))
self.addr += 1
#print("storing weights (wi glb)")
#print(data)
if (self.addr == max_addr):
self.addr = self.out_chn // self.block_size
self.wwr_done = True
#print("Done storing weights (wi glb)")
#print("--------------------------")
#print(self.wsram.data)
#print("--------------------------")
# within this block of code self.addr is re-used
# here it is more analogous to curr_set
# and refers to the current block of filters (last index of the four)
# that is being read
else:
# Catch addresses that correspond to nonzero inputs
# search "self.weights_to_send.push(waddr)" below
if (self.weights_to_send.valid()
and self.addr == self.out_chn // self.block_size):
self.base_addr = self.weights_to_send.pop()
self.addr = 0
# cycle through channels using self.addr
# make requests to memory; will pick these up in the next if statement below
elif (self.wlast_read.vacancy()
and not self.addr == self.out_chn // self.block_size):
full_addr = self.base_addr + self.addr
self.wsram.request(RD, full_addr)
self.wlast_read.push(False)
#print("Request weights (wi glb):")
#print(full_addr)
self.addr += 1
# catch requests from memory; send results to WeightsNoC
if self.wlast_read.valid() and self.weights_rd_chn.vacancy(1):
is_zero = self.wlast_read.pop()
data = [e for e in self.wsram.response()]
self.weights_rd_chn.push(data)
#print("weights sent (from iw glb)")
#print(data)
self.raw_stats['rd'] += len(data)
# these two if statements take care of an issue that occurs at the end
# PEs don't automatically detect the end of the computation without inputs
# from another location
# So we send in some dummy inputs to flush out the last outputs
if self.weights_rd_chn.vacancy(1) and not self.wlast_read.valid() and \
not self.weights_to_send.valid() and self.addr == self.out_chn // self.block_size\
and self.weights_to_flush > 0:
self.weights_to_flush -= 1
self.weights_rd_chn.push([0 for i in range(self.block_size)])
if self.ifmap_done and self.inputs_to_flush > 0 and self.ifmap_rd_chn.vacancy(
1):
self.inputs_to_flush -= 1
self.ifmap_rd_chn.push([-1, 0, 0])
# IFMAP-------------------------------------------------------------------
if not (self.ifmap_done and not self.ilast_read.valid()
and not self.ready_to_output):
verbose = False
# shorthand values that will be useful later
num_iteration = self.filter_size[0] * self.filter_size[1]
offset_x = (self.filter_size[0] - 1) // 2
offset_y = (self.filter_size[1] - 1) // 2
filter_x = self.iteration % self.filter_size[0] - offset_x
filter_y = self.iteration // self.filter_size[0] - offset_y
in_sets = self.in_chn // self.block_size
out_sets = self.out_chn // self.block_size
if not self.iwr_done and not self.ready_to_output:
# Write to GLB
if self.ifmap_wr_chn.valid():
data = self.ifmap_wr_chn.pop()
data = np.reshape(np.asarray(data), (-1))
full_addr = in_sets * self.fmap_idx + self.curr_set
#print("ifmap (wi glb) received data:")
#print(data)
#print("{} >?= {}".format(full_addr, self.needed_addr))
self.curr_set += 1
addr = full_addr % self.ifmap_glb_depth
# if we have enough inputs in memory to start sending
if (full_addr == self.needed_addr):
self.ready_to_output = True
self.needed_addr += in_sets
self.isram.request(WR, addr, data)
self.raw_stats['wr'] += len(data)
#print("ifmap, iw glb")
#print("{} written to {}".format(data, addr))
if self.curr_set == self.fmap_sets:
self.curr_set = 0
self.fmap_idx += 1
if self.fmap_idx == self.fmap_per_iteration:
# Done initializing ifmaps and psums
print("iw glb: Finished filling ifmap buffer")
self.fmap_idx = 0
self.iwr_done = True
elif self.ready_to_output:
increment_vals = False
# send data to NoC
if (self.ilast_read.valid() and self.ifmap_rd_chn.vacancy(1)):
is_zero = self.ilast_read.pop()
#print(is_zero)
if (not is_zero):
self.curr_data = [e for e in self.isram.response()]
self.data_idx = 0
else:
increment_vals = True
elif (not self.data_idx == self.num_nonzero
and self.weights_to_send.vacancy()
and self.base_addr_wo_chn >= 0):
data = [self.curr_data[i] for i in \
range(self.data_idx*3, self.data_idx*3 + 3)]
data_mod = [self.curr_x*self.image_size[1]+self.curr_y,\
data[1], data[2]]
self.ifmap_rd_chn.push(data_mod)
#print("iw glb inputs sent: {},{},{}".format(self.curr_x, self.curr_y, self.curr_chn))
#print(data_mod)
self.raw_stats['rd'] += 1
# Assertion checks that we will not attempt to read data that
# has not yet been stored in memory
waddr = self.base_addr_wo_chn + int(data[0]) * out_sets
assert (self.wwr_done or waddr < self.addr)
#self.wsram.request(RD, waddr)
#self.wlast_read.push(False)
self.weights_to_send.push(waddr)
#print("Send request (wi glb):")
#print(waddr)
self.data_idx += 1
#if (self.data_idx == self.num_nonzero):
if (data[2] == 1):
self.data_idx = self.num_nonzero
increment_vals = True
if (self.data_idx == self.num_nonzero):
self.base_addr_wo_chn = -1
#print(self.data_idx)
if (increment_vals):
#print(self.send_idx)
self.curr_chn += 1
if (self.curr_chn == in_sets):
self.curr_chn = 0
self.send_idx += 1
if (self.send_idx == self.filter_size[0] *
self.filter_size[1]):
#print("Ready to shift input glb frame ({},{})".format(self.curr_x, self.curr_y))
self.send_idx = 0
self.curr_y += 1
if (self.curr_y == self.image_size[1]):
self.curr_y = 0
self.curr_x += 1
if (self.curr_x == self.image_size[0]):
self.curr_x = 0
self.ifmap_done = True
#print("Done sending inputs from iw glb")
self.ready_to_output = False
self.inputs_to_flush = 1
self.weights_to_flush = self.arr_y // self.block_size
elif (not self.iwr_done):
self.ready_to_output = False
#print(self.ifmap_wr_chn.valid())
# stage one of these at a time
# request data from SRAM
if (not self.ifmap_done and self.ilast_read.vacancy(1) and \
self.data_idx == self.num_nonzero and self.weights_to_send.vacancy()\
and self.base_addr_wo_chn == -1):
# and not (self.curr_x == self.image_size[0]):
x_adj = (self.curr_x + self.curr_filt_x - offset_x)
y_adj = self.curr_y + self.curr_filt_y - offset_y
idx = x_adj * self.image_size[1] + y_adj
#print("{},{},{} input requested".format(x_adj, y_adj, self.curr_filt_set))
#print(idx)
if (x_adj < 0 or x_adj >= self.image_size[0] or y_adj < 0
or y_adj >= self.image_size[1]):
self.ilast_read.push(True)
else:
addr = (idx * in_sets +
self.curr_filt_set) % self.ifmap_glb_depth
self.isram.request(RD, addr)
self.ilast_read.push(False)
# set up for corresponding weights to be sent later
self.base_addr_wo_chn = self.curr_filt_x*self.filter_size[1]\
*self.in_chn*out_sets + \
self.curr_filt_y*self.in_chn*out_sets + \
self.curr_filt_set*self.block_size*out_sets
#print("Next base addr = {}".format(self.base_addr_wo_chn))
self.curr_filt_set += 1
if (self.curr_filt_set == in_sets):
self.curr_filt_set = 0
self.curr_filt_y += 1
if (self.curr_filt_y == self.filter_size[1]):
self.curr_filt_y = 0
self.curr_filt_x += 1
if (self.curr_filt_x == self.filter_size[0]):
self.curr_filt_x = 0
class WeightsGLB(Module):
def instantiate(self, wr_chn, rd_chn, glb_depth, block_size):
self.wr_chn = wr_chn
self.rd_chn = rd_chn
self.name = 'weight_glb'
self.filter_size = (0, 0)
self.image_size = (0, 0)
self.wr_done = False
self.iteration = 0
self.addr = 0
self.in_chn = 0
self.out_chn = 0
#self.arr_y = 0
#self.out_sets = 0
self.block_size = block_size
self.sram = SRAM(glb_depth, block_size)
self.last_read = Channel(3)
self.stat_type = 'show'
self.raw_stats = {'size': (glb_depth, block_size), 'rd': 0, 'wr': 0}
def configure(self, filter_size, image_size, in_chn, out_chn):
self.filter_size = filter_size
self.image_size = image_size
self.iteration = 0
self.addr = 0
self.in_chn = in_chn
self.out_chn = out_chn
#self.arr_y = arr_y
#self.out_sets = out_sets
self.wr_done = False
def tick(self):
# num_iterations = times to read out all weights
# max_addr = number of slots to hold all blocks of weights
num_iterations = self.image_size[0] * self.image_size[
1] * self.in_chn // self.block_size
max_addr = self.filter_size[0] * self.filter_size[
1] * self.in_chn * self.out_chn // self.block_size
verbose = False
if not self.wr_done:
if self.wr_chn.valid():
data = self.wr_chn.pop()
self.raw_stats['wr'] += len(data)
#print(self.addr)
#print(data)
#print(type(data))
self.sram.request(WR, self.addr, np.asarray(data))
self.addr += 1
if (self.addr == max_addr):
self.addr = 0
self.wr_done = True
if (verbose):
print("weight_glb")
print(data)
elif self.rd_chn.vacancy(1):
if (self.iteration < num_iterations):
self.sram.request(RD, self.addr)
self.last_read.push(False)
self.addr += 1
if (self.addr == max_addr):
self.addr = 0
self.iteration += 1
#self.rd_chn.push(data)
#self.raw_stats['rd'] += len(data)
if self.last_read.valid():
is_zero = self.last_read.pop()
data = [e for e in self.sram.response()]
self.rd_chn.push(data)
#print(self.iteration)
#print(data)
self.raw_stats['rd'] += len(data)
class PSumGLB(Module):
def instantiate(self, dram_wr_chn, noc_wr_chn, rd_chn, glb_depth,
block_size, num_nonzero):
self.dram_wr_chn = dram_wr_chn
self.noc_wr_chn = noc_wr_chn
self.rd_chn = rd_chn
self.name = 'psum_glb'
self.block_size = block_size
self.num_nonzero = num_nonzero
self.stat_type = 'show'
self.raw_stats = {'size': (glb_depth, block_size), 'rd': 0, 'wr': 0}
self.sram = SRAM(glb_depth, block_size, nports=2, dtype=np.float16)
self.last_read = Channel(3)
self.filter_size = (0, 0)
self.fmap_sets = 0
self.fmap_per_iteration = 0
self.rd_set = 0
self.fmap_rd_idx = 0
self.iteration = 0
self.wr_set = 0
self.fmap_wr_idx = 0
self.wr_done = False
def configure(self, filter_size, out_chn, fmap_per_iteration):
self.wr_done = False
self.filter_size = filter_size
self.out_chn = out_chn
self.fmap_per_iteration = fmap_per_iteration
self.rd_set = 0
self.fmap_rd_idx = 0
self.iteration = 0
self.wr_set = 0
self.fmap_wr_idx = 0
self.wr_done = False
def tick(self):
num_iteration = 1 #self.filter_size[0]*self.filter_size[1]
if not self.wr_done:
# Write to GLB
if self.dram_wr_chn.valid():
data = self.dram_wr_chn.pop()
# Write ifmap to glb
#print("psum_glb")
#print(data)
#addr = self.fmap_sets*self.fmap_wr_idx + self.wr_set
addr = self.wr_set
self.wr_set += 1
self.sram.request(WR, addr, data, port=0)
self.raw_stats['wr'] += len(data)
if self.wr_set == self.out_chn // self.block_size:
self.wr_set = 0
self.wr_done = True
#self.fmap_wr_idx += 1
#if self.fmap_wr_idx == self.fmap_per_iteration:
# # Done initializing ifmaps and psums
# # self.sram.dump()
# #print("done!")
# self.fmap_wr_idx = 0
# self.wr_done = True
else:
# Read from GLB and deal with SRAM latency
if self.rd_chn.vacancy(1) and self.iteration < num_iteration:
#addr = self.fmap_sets*self.fmap_rd_idx + self.rd_set
addr = self.rd_set
self.sram.request(RD, addr, port=0)
self.last_read.push(False)
self.rd_set += 1
if self.rd_set == self.out_chn // self.block_size:
self.rd_set = 0
self.fmap_rd_idx += 1
if self.fmap_rd_idx == self.fmap_per_iteration:
self.fmap_rd_idx = 0
self.iteration += 1
# Process the last read sent to the GLB SRAM
if self.last_read.valid():
is_zero = self.last_read.pop()
data = [0]*self.block_size if is_zero else \
[e for e in self.sram.response()]
self.rd_chn.push(data)
self.raw_stats['rd'] += len(data)
class IFMapGLB(Module):
def instantiate(self, wr_chn, rd_chn, glb_depth, chn_per_word):
self.wr_chn = wr_chn
self.rd_chn = rd_chn
self.chn_per_word = chn_per_word
self.name = 'ifmap_glb'
self.stat_type = 'show'
self.raw_stats = {'size': (glb_depth, chn_per_word), 'rd': 0, 'wr': 0}
self.sram = SRAM(glb_depth, chn_per_word, name=self.name)
self.last_read = Channel(3, name='last_read')
self.image_size = (0, 0)
self.filter_size = (0, 0)
self.fmap_sets = 0
self.fmap_per_iteration = 0
self.curr_set = 0
self.fmap_idx = 0
self.iteration = 0
self.wr_done = False
def configure(self, image_size, filter_size, fmap_sets,
fmap_per_iteration):
self.wr_done = False
self.image_size = image_size
self.filter_size = filter_size
self.fmap_sets = fmap_sets
self.fmap_per_iteration = fmap_per_iteration
def tick(self):
# self.iteration is which weight we are currently using
# It's weight stationary so we fully use a set of filter weights
# before continuing on.
# (first weight in each filter, second weight in each filter, etc...)
num_iteration = self.filter_size[0] * self.filter_size[1]
offset_x = (self.filter_size[0] - 1) // 2
offset_y = (self.filter_size[1] - 1) // 2
filter_x = self.iteration % self.filter_size[0] - offset_x
filter_y = self.iteration // self.filter_size[0] - offset_y
# This is the first tick since initializing
# INITIALIZATION CODE
# Write all ifmaps and psums? to sram
if not self.wr_done:
# Write to GLB
if self.wr_chn.valid():
data = self.wr_chn.pop()
# print "ifmap_glb wr"
self.raw_stats['wr'] += 1
# Write ifmap to glb
# print "ifmap_to_glb: ", in_sets, self.fmap_idx, self.curr_set
addr = self.fmap_sets * self.fmap_idx + self.curr_set
self.curr_set += 1
self.sram.request(WR, addr, data)
if self.curr_set == self.fmap_sets:
self.curr_set = 0
self.fmap_idx += 1
if self.fmap_idx == self.fmap_per_iteration:
# Done initializing ifmaps and psums
# self.sram.dump()
self.fmap_idx = 0
self.wr_done = True
else:
# Read from GLB and deal with SRAM latency
if self.rd_chn.vacancy(1) and self.iteration < num_iteration:
fmap_x = self.fmap_idx % self.image_size[0]
fmap_y = self.fmap_idx // self.image_size[0]
ifmap_x, ifmap_y = (fmap_x + filter_x, fmap_y + filter_y)
if (ifmap_x < 0) or (ifmap_x >= self.image_size[0]) or \
(ifmap_y < 0) or (ifmap_y >= self.image_size[1]):
# print "ifmap req zero", self.iteration, self.fmap_idx
self.last_read.push(True)
else:
fmap_idx = (ifmap_y * self.image_size[0]) + ifmap_x
addr = self.fmap_sets * fmap_idx + self.curr_set
# print "ifmap req glb", self.iteration, self.fmap_idx
self.sram.request(RD, addr)
self.last_read.push(False)
self.curr_set += 1
if self.curr_set == self.fmap_sets:
self.curr_set = 0
self.fmap_idx += 1
if self.fmap_idx == self.fmap_per_iteration:
self.fmap_idx = 0
self.iteration += 1
# Process the last read sent to the GLB SRAM
if self.last_read.valid():
is_zero = self.last_read.pop()
# self.raw_stats['rd'] += 1
data = [0]*self.chn_per_word if is_zero else \
[e for e in self.sram.response()]
# print "ifmap rd glb", data
self.rd_chn.push(data)
self.raw_stats['rd'] += 1
class IFMapGLB(Module):
def instantiate(self, wr_chn, rd_chn, glb_depth, chn_per_word):
self.wr_chn = wr_chn
self.rd_chn = rd_chn
self.chn_per_word = chn_per_word
self.name = 'ifmap_glb'
self.stat_type = 'show'
self.raw_stats = {'size': (glb_depth, chn_per_word), 'rd': 0, 'wr': 0}
self.sram = SRAM(glb_depth, chn_per_word)
self.last_read = Channel(3)
self.image_size = (0, 0)
self.filter_size = (0, 0)
self.fmap_sets = 0
self.fmap_per_iteration = 0
self.curr_set = 0
self.fmap_idx = 0
self.iteration = 0
self.wr_done = False
def configure(self, image_size, filter_size, fmap_sets,
fmap_per_iteration):
self.wr_done = False
self.image_size = image_size
self.filter_size = filter_size
self.fmap_sets = fmap_sets
self.fmap_per_iteration = fmap_per_iteration
self.fmap_idx_ctr = 0
def tick(self):
num_iteration = self.filter_size[0] * self.filter_size[1]
offset_x = (self.filter_size[0] - 1) // 2
offset_y = (self.filter_size[1] - 1) // 2
filter_x = self.iteration % self.filter_size[0] #- offset_x
filter_y = self.iteration // self.filter_size[0] #- offset_y
if not self.wr_done:
# Write to GLB
if self.wr_chn.valid():
data = self.wr_chn.pop()
self.raw_stats['wr'] += len(data)
# print "ifmap_glb wr"
# Write ifmap to glb
addr = self.fmap_sets * self.fmap_idx + self.curr_set
#print("ifmap_to_glb: fmap idx, curr set, addr ", self.fmap_idx, self.curr_set, addr)
self.curr_set += 1
self.sram.request(WR, addr, data)
if self.curr_set == self.fmap_sets:
self.curr_set = 0
self.fmap_idx += 1
if self.fmap_idx == 16: # self.fmap_per_iteration:
# Done initializing ifmaps and psums
# self.sram.dump()
self.fmap_idx = 0
self.wr_done = True
else:
# Read from GLB and deal with SRAM latency
#if self.rd_chn.vacancy(1) and self.iteration < num_iteration:
# fmap_x = self.fmap_idx % self.image_size[0]
# fmap_y = self.fmap_idx // self.image_size[0]
# ifmap_x, ifmap_y = (fmap_x + filter_x, fmap_y + filter_y)
# if (ifmap_x < 0) or (ifmap_x >= self.image_size[0]) or \
# (ifmap_y < 0) or (ifmap_y >= self.image_size[1]):
# # print("ifmap req zero: iter, fmap idx ", self.iteration, self.fmap_idx)
# self.last_read.push(True)
# else:
# fmap_idx = (ifmap_y*self.image_size[0]) + ifmap_x
# # addr = self.fmap_sets*fmap_idx + self.curr_set
# #print("addr fmap idx, addr: ", fmap_idx, addr)
# print("ifmap req glb: iter, fmap idx, addr ", self.iteration, self.fmap_idx, addr)
# self.sram.request(RD, addr)
# self.last_read.push(False)
# self.curr_set += 1
# if self.curr_set == self.fmap_sets:
# self.curr_set = 0
# self.fmap_idx += 1
# if self.fmap_idx == self.fmap_per_iteration:
# # print("fmap idx, fmap per iter: ", self.fmap_idx, self.fmap_per_iteration)
# self.fmap_idx = 0
# self.iteration += 1
# TODO: fix this
fmap_indices = [
0, 1, 4, 5, 1, 2, 5, 6, 2, 3, 6, 7, 4, 5, 8, 9, 5, 6, 9, 10, 6,
7, 10, 11, 8, 9, 12, 13, 9, 10, 13, 14, 10, 11, 14, 15
]
if self.rd_chn.vacancy(
1) and self.iteration < num_iteration: # 9 iterations
fmap_idx = fmap_indices[self.fmap_idx_ctr]
addr = fmap_idx
#print("addr fmap idx, addr: ", fmap_idx, addr)
print("ifmap req glb: fmap_idx_ctr, addr ", self.fmap_idx_ctr,
addr)
self.sram.request(RD, addr)
self.last_read.push(False)
self.fmap_idx_ctr += 1
if (self.fmap_idx_ctr % 4) == 0:
self.iteration += 1
if self.last_read.valid():
if self.last_read.pop():
pass # do nothing
else: # push data to ifmap NOC
data = [e for e in self.sram.response()]
print("ifmap rd glb", data)
self.rd_chn.push(data)
self.raw_stats['rd'] += len(data)
class PSumGLB(Module):
def instantiate(self, dram_wr_chn, noc_wr_chn, rd_chn, glb_depth, chn_per_word):
self.dram_wr_chn = dram_wr_chn
self.noc_wr_chn = noc_wr_chn
self.rd_chn = rd_chn
self.chn_per_word = chn_per_word
self.name = 'psum_glb'
self.stat_type = 'show'
self.raw_stats = {'size' : (glb_depth, chn_per_word), 'psum_glb_rd': 0, 'psum_glb_wr': 0}
self.sram = SRAM(glb_depth, chn_per_word, nports=2)
self.last_read = Channel(3)
self.filter_size = (0, 0)
self.fmap_sets = 0
self.fmap_per_iteration = 0
self.rd_set = 0
self.fmap_rd_idx = 0
self.iteration = 0
self.wr_set = 0
self.fmap_wr_idx = 0
self.wr_done = False
def configure(self, filter_size, fmap_sets, fmap_per_iteration):
self.wr_done = False
self.filter_size = filter_size
self.fmap_sets = fmap_sets
self.fmap_per_iteration = fmap_per_iteration
self.rd_set = 0
self.fmap_rd_idx = 0
self.iteration = 0
self.wr_set = 0
self.fmap_wr_idx = 0
self.wr_done = False
def tick(self):
num_iteration = self.filter_size[0]*self.filter_size[1]
if not self.wr_done:
# Write to GLB
if self.dram_wr_chn.valid():
data = self.dram_wr_chn.pop()
self.raw_stats['psum_glb_wr'] += len(data)
# print "psum_glb wr"
# Write ifmap to glb
addr = self.fmap_sets*self.fmap_wr_idx + self.wr_set
self.wr_set += 1
self.sram.request(WR, addr, data, port=1)
if self.wr_set == self.fmap_sets:
self.wr_set = 0
self.fmap_wr_idx += 1
if self.fmap_wr_idx == self.fmap_per_iteration:
# Done initializing ifmaps and psums
# self.sram.dump()
self.fmap_wr_idx = 0
self.wr_done = True
#print ("psum orig write, fmap_sets, fmap_wr_idx, wr_set, addr, data: ",self.fmap_sets, self.fmap_wr_idx, self.wr_set, addr, data)
else:
# Read from GLB and deal with SRAM latency
# print self.rd_chn.vacancy(1), self.rd_chn.rd_ptr.rd(), self.rd_chn.wr_ptr.rd()
if self.rd_chn.vacancy(1) and self.iteration < num_iteration:
addr = self.fmap_sets*self.fmap_rd_idx + self.rd_set
#print("psum req glb", self.iteration, self.fmap_rd_idx, self.rd_set)
self.sram.request(RD, addr, port=0)
self.last_read.push(False)
self.rd_set += 1
if self.rd_set == self.fmap_sets:
self.rd_set = 0
self.fmap_rd_idx += 1
if self.fmap_rd_idx == self.fmap_per_iteration:
self.fmap_rd_idx = 0
self.iteration += 1
# Process the last read sent to the GLB SRAM
if self.last_read.valid():
is_zero = self.last_read.pop()
data = [0]*self.chn_per_word if is_zero else \
[e for e in self.sram.response()]
self.rd_chn.push(data)
self.raw_stats['psum_glb_rd'] += len(data)
#print("psum rd glb: data", data)
if self.noc_wr_chn.valid():
data = self.noc_wr_chn.pop()
#print("psum_to_glb: ", self.fmap_wr_idx, self.wr_set, data)
self.raw_stats['psum_glb_wr'] += len(data)
addr = self.fmap_sets*self.fmap_wr_idx + self.wr_set
#print("noc psum wr glb", self.fmap_wr_idx, self.wr_set, data)
self.wr_set += 1
self.sram.request(WR, addr, data, port=1)
if self.wr_set == self.fmap_sets:
self.wr_set = 0
self.fmap_wr_idx += 1
if self.fmap_wr_idx == self.fmap_per_iteration:
# Done initializing ifmaps and psums
#self.sram.dump()
self.fmap_wr_idx = 0
class IFMapGLB(Module):
def instantiate(self, wr_chn, rd_chn, arr_y, glb_depth, block_size,
num_nonzero):
self.wr_chn = wr_chn
self.rd_chn = rd_chn
self.arr_y = arr_y
self.block_size = block_size
self.num_nonzero = num_nonzero
self.name = 'ifmap_glb'
self.stat_type = 'show'
self.raw_stats = {'size': (glb_depth, num_nonzero), 'rd': 0, 'wr': 0}
self.sram = SRAM(glb_depth, num_nonzero * 3)
self.last_read = Channel(3)
self.glb_depth = glb_depth
self.image_size = (0, 0)
self.filter_size = (0, 0)
self.fmap_sets = 0
self.fmap_per_iteration = 0
self.curr_set = 0
self.fmap_idx = 0
self.iteration = 0
self.wr_done = False
# For managing convolution
self.curr_x = 0
self.curr_y = 0
self.curr_chn = 0
self.request_idx = 0
self.send_idx = 0
#self.curr_filt_x = 0
#self.curr_filt_y = 0
self.ifmap_done = False
self.needed_addr = 0
self.ready_to_output = False # ready to output a filter_size block of inputs
self.curr_data = [0 for i in range(3 * num_nonzero)]
self.data_idx = num_nonzero # block other operations while actively working through data
# send one data point at a time (of num_nonzero)
def configure(self, image_size, filter_size, in_chn, fmap_per_iteration):
self.wr_done = False
self.image_size = image_size
self.filter_size = filter_size
self.in_chn = in_chn
self.fmap_per_iteration = fmap_per_iteration
# For managing convolution
self.curr_x = 0
self.curr_y = 0
self.curr_chn = 0
self.request_idx = 0
self.send_idx = 0
self.curr_filt_x = 0
self.curr_filt_y = 0
self.curr_filt_set = 0
self.ifmap_done = False
offset_x = (self.filter_size[0] - 1) // 2
offset_y = (self.filter_size[1] - 1) // 2
# The first address needed to be filled in order to start sending
self.needed_addr = (self.image_size[0]*(1+offset_y) + 1+offset_x) *\
(self.in_chn // self.block_size) - 1
# Goes high to transfer sram control to output
# Doing them synchronously would be better, but complicates things
self.ready_to_output = False
def tick(self):
if (self.ifmap_done and not self.last_read.valid()
and not self.ready_to_output):
return
verbose = False
num_iteration = self.filter_size[0] * self.filter_size[1]
offset_x = (self.filter_size[0] - 1) // 2
offset_y = (self.filter_size[1] - 1) // 2
filter_x = self.iteration % self.filter_size[0] - offset_x
filter_y = self.iteration // self.filter_size[0] - offset_y
in_sets = self.in_chn // self.block_size
#print(filter_x)
if not self.wr_done and not self.ready_to_output:
# Write to GLB
if self.wr_chn.valid():
data = self.wr_chn.pop()
data = np.reshape(np.asarray(data), (-1))
# Write ifmap to glb
#print("ifmap_glb")
#print(data)
full_addr = in_sets * self.fmap_idx + self.curr_set
self.curr_set += 1
addr = full_addr % self.glb_depth
# if we have enough inputs in memory to start sending
if (full_addr == self.needed_addr):
self.ready_to_output = True
self.needed_addr += in_sets
self.sram.request(WR, addr, data)
self.raw_stats['wr'] += len(data)
if self.curr_set == self.fmap_sets:
self.curr_set = 0
self.fmap_idx += 1
if self.fmap_idx == self.fmap_per_iteration:
# Done initializing ifmaps and psums
# self.sram.dump()
self.fmap_idx = 0
self.wr_done = True
elif self.ready_to_output:
# send data to NoC
if (self.last_read.valid() and self.rd_chn.vacancy(1)
and self.data_idx == 0):
xmin = self.curr_filt_x
xmax = xmin + self.arr_y
#print("{}-{},{},{}".format(xmin, xmax, self.holder_y, self.curr_chn))
#data = [self.holder[x][self.holder_y][self.curr_chn] for x in range(xmin, xmax)]
is_zero = self.last_read.pop()
if (not is_zero):
self.curr_data = [e for e in self.sram.response()]
self.data_idx = 0
if (not self.data_idx == self.num_nonzero):
data = [self.curr_data[i] for i in \
range(self.data_idx*3, self.data_idx*3 + 3)]
self.rd_chn.push(data)
self.raw_stats['rd'] += len(data)
self.data_idx += 1
if (self.data_idx == num_nonzero):
self.data_idx = 0
self.curr_chn += 1
if (self.curr_chn == self.arr_y):
self.curr_chn = 0
self.send_idx += 1
if (self.send_idx == self.filter_size[0] *
self.filter_size[1]):
if (verbose):
print("Ready to shift input glb frame")
self.send_idx = 0
self.curr_y += 1
if (self.curr_y == self.image_size[1]):
self.curr_y = 0
self.curr_x += 1
if (self.curr_x == self.image_size[0]):
self.curr_x = 0
self.ifmap_done = True
self.ready_to_output = False
elif (not self.wr_done):
self.ready_to_output = False
#print("{},{},{}".format(self.holder_x, self.holder_y, self.curr_chn))
#print(data)
# stage one of these at a time
# request data from SRAM
if (not self.ifmap_done and self.last_read.vacancy(1)
and self.data_idx == num_nonzero):
# and not (self.curr_x == self.image_size[0]):
idx = (self.curr_x + self.curr_filt_x -
offset_x) * self.image_size[
1] + self.curr_y + self.curr_filt_y - offset_y
#print(idx)
if (idx >= self.image_size[0] * self.image_size[1] or idx < 0):
self.last_read.push(True)
else:
addr = idx * in_sets + self.curr_filt_set
self.sram.request(RD, addr)
self.last_read.push(False)
self.curr_filt_set += 1
if (self.curr_filt_set == in_sets):
self.curr_filt_set = 0
self.curr_filt_y += 1
if (self.curr_filt_y == self.filter_size[1]):
self.curr_filt_y = 0
self.curr_filt_x += 1
if (self.curr_filt_x == self.filter_size[0]):
self.curr_filt_x = 0