def synthesize(self, code):
old_code = spu.get_active_code()
spu.set_active_code(code)
stream = spuiter.stream_buffer(code, self.stream_addr,
self.stream_size * 4, self.buffer_size,
self.lsa)
ls_data = spuiter.memory_desc('I', self.lsa, self.buffer_size / 4)
popc = syn_popc_var()
x = var.Word(0)
count = var.Word(0)
total = var.Word(0)
for buffer in stream:
for x in spuiter.spu_vec_iter(code, ls_data, addr_reg=buffer):
popc.popc(count, x)
popc.reduce_word(total, count)
# Send the result to the caller
spu.wrch(total, dma.SPU_WrOutMbox)
spu.set_active_code(old_code)
return
def synthesize(self, code):
old_code = spu.get_active_code()
spu.set_active_code(code)
if self.buffers is None: raise Exception('Please set buffers')
if self.stride is None: raise Exception('Please set stride')
# Draw a square
color = var.SignedWord(0x0F0F0FFF)
fb0 = var.Word(self.buffers[0])
fb1 = var.Word(self.buffers[1])
stride = var.Word(self.stride)
addr = var.Word(0)
# Draw one line
line_pixels = 256
for i in spuiter.syn_iter(code, line_pixels*4, step = 16):
spu.stqx(color, addr, i)
# Transfer the line to the frame buffer
md_fb = spuiter.memory_desc('I', size = line_pixels)
md_fb.set_addr_reg(addr.reg)
addr.v = fb0
for i in spuiter.syn_iter(code, 128):
md_fb.put(code, 0)
addr.v = addr + stride
spu.set_active_code(old_code)
return
def synthesize(self, code):
old_code = spu.get_active_code()
spu.set_active_code(code)
stream = spuiter.stream_buffer(code, self.stream_addr, self.stream_size * 4,
self.buffer_size, self.lsa)
ls_data = spuiter.memory_desc('I', self.lsa, self.buffer_size / 4)
popc = syn_popc_var()
x = var.Word(0)
count = var.Word(0)
total = var.Word(0)
for buffer in stream:
for x in spuiter.spu_vec_iter(code, ls_data, addr_reg = buffer):
popc.popc(count, x)
popc.reduce_word(total, count)
# Send the result to the caller
spu.wrch(total, dma.SPU_WrOutMbox)
spu.set_active_code(old_code)
return
def row_complete(self, code):
"""
Save the current row to the framebuffer.
"""
if self.w is None: raise Exception('Please set width')
if self.lsa is None: raise Exception('Please set lsa')
if self.y_offset is None: raise Exception('Please call setup')
md = spuiter.memory_desc('I', size=self.w)
md.set_addr_reg(self.y_offset)
md.put(code, self.lsa)
self.y_offset.v = self.y_offset + self.stride
spu.xor(self.x_offset, self.x_offset, self.x_offset)
return
def row_complete(self, code):
"""
Save the current row to the framebuffer.
"""
if self.w is None: raise Exception('Please set width')
if self.lsa is None: raise Exception('Please set lsa')
if self.y_offset is None: raise Exception('Please call setup')
md = spuiter.memory_desc('I', size = self.w)
md.set_addr_reg(self.y_offset)
md.put(code, self.lsa)
self.y_offset.v = self.y_offset + self.stride
spu.xor(self.x_offset, self.x_offset, self.x_offset)
return
def save_ls_buffer(self, ls_size = None, branch = False):
code = spu.get_active_code()
regs = []
if ls_size is None:
ls_size = code.acquire_register()
regs.append(ls_size)
# Set the main memory address
mm_offset = code.acquire_register()
regs.append(mm_offset)
spu.rotqbyi(mm_offset, self.mm_buffer, 4)
spu.a(mm_offset, mm_offset, self.mm_buffer)
# Tranfer the buffer
md = spuiter.memory_desc('b')
md.set_size_reg(ls_size)
md.set_addr_reg(mm_offset)
md.put(code, self.ls_buffer)
# Increment the main memory offset
mm_size = code.acquire_register()
regs.append(mm_size)
spu.rotqbyi(mm_size, self.mm_buffer, 8)
spu.rotqbyi(mm_offset, self.mm_buffer, 4)
spu.a(mm_offset, mm_offset, mm_size)
util.set_slot_value(code, self.mm_buffer, 2, mm_offset)
# Reset the ls offset
util.set_slot_value(code, self.ls_buffer, 2, 0)
code.release_registers(regs)
return
def save_ls_buffer(self, ls_size=None, branch=False):
code = spu.get_active_code()
regs = []
if ls_size is None:
ls_size = code.acquire_register()
regs.append(ls_size)
# Set the main memory address
mm_offset = code.acquire_register()
regs.append(mm_offset)
spu.rotqbyi(mm_offset, self.mm_buffer, 4)
spu.a(mm_offset, mm_offset, self.mm_buffer)
# Tranfer the buffer
md = spuiter.memory_desc('b')
md.set_size_reg(ls_size)
md.set_addr_reg(mm_offset)
md.put(code, self.ls_buffer)
# Increment the main memory offset
mm_size = code.acquire_register()
regs.append(mm_size)
spu.rotqbyi(mm_size, self.mm_buffer, 8)
spu.rotqbyi(mm_offset, self.mm_buffer, 4)
spu.a(mm_offset, mm_offset, mm_size)
util.set_slot_value(code, self.mm_buffer, 2, mm_offset)
# Reset the ls offset
util.set_slot_value(code, self.ls_buffer, 2, 0)
code.release_registers(regs)
return
def TestTanimotoBlock(n_vecs = 4):
code = synspu.InstructionStream()
proc = synspu.Processor()
code.set_debug(True)
spu.set_active_code(code)
tb = TanimotoBlock()
ls_save = LocalSave()
mm_save = MemorySave()
code.set_debug(True)
# Input block parameters
m = 128
n = 64
# n_vecs = 9
n_bits = 128 * n_vecs
# Main memory results buffer
# max_results = 2**16
max_results = 16384
words_per_result = 4
mm_results_data = array.array('I', [12 for i in range(max_results * words_per_result)])
#mm_results_buffer = synspu.aligned_memory(max_results * words_per_result, typecode = 'I')
# mm_results_buffer.copy_to(mm_results_data.buffer_info()[0], len(mm_results_data))
mm_results = spuiter.memory_desc('I')
#mm_results.from_array(mm_results_buffer)
mm_results.from_array(mm_results_data)
mm_save.set_md_save_buffer(mm_results)
# Local Results buffer
buffer_size = var.SignedWord(16384)
buffer_addr = var.SignedWord(m * n * n_vecs * 4)
ls_results = spuiter.memory_desc('B')
ls_results.set_size_reg(buffer_size)
ls_results.set_addr_reg(buffer_addr)
ls_save.set_md_results(ls_results)
ls_save.set_mm_save_op(mm_save)
# Setup the TanimotoBlock class
tb.set_n_bits(n_bits)
tb.set_block_size(m, n)
tb.set_x_addr(0)
tb.set_y_addr(m * n_vecs * 16)
tb.set_save_op(ls_save)
# Main test loop
n_samples = 10000
for samples in spuiter.syn_iter(code, n_samples):
tb.synthesize(code)
spu.wrch(buffer_size, dma.SPU_WrOutMbox)
spu.stop(0x2000)
# "Function" Calls
ls_save.block()
mm_save.block()
# code.print_code()
start = time.time()
spe_id = proc.execute(code, async=True)
while synspu.spu_exec.stat_out_mbox(spe_id) == 0: pass
# print 'tb said: 0x%X' % (synspu.spu_exec.read_out_mbox(spe_id))
stop = time.time()
# mm_results_buffer.copy_from(mm_results_data.buffer_info()[0], len(mm_results_data))
proc.join(spe_id)
total = stop - start
bits_sec = (m * n * n_bits * n_samples) / total / 1e9
ops_per_compare = 48 * 4 + 8 # 48 SIMD instructions, 8 scalar
insts_per_compare = 56
gops = (m * n * n_vecs * n_samples * ops_per_compare ) / total / 1e9
ginsts = (m * n * n_vecs * n_samples * insts_per_compare ) / total / 1e9
print '%.6f sec, %.2f Gbits/sec, %.2f GOps, %.2f GInsts, %d insts' % (
total, bits_sec, gops, ginsts, code.size())
return
def MemoryDescExample(data_size=20000):
"""
This example uses a memory descriptor to move 20k integers back and
forth between main memory and the SPU local store. Each value is
incremented by 1 while on the SPU.
Memory descriptors are a general purpose method for describing a
region of memory. Memory is described by a typecode, address, and
size. Memory descriptors can be initialized by hand or from an
array or buffer object.
For main memory, memory descriptors are useful for transfering data
between main memory and an SPU's local store. The get/put methods
on a memory descriptor generate the SPU code to move data of any
size between main memory and local store.
Memory descriptors can also be used with spu_vec_iters to describe
the region of memory to iterate over. The typecode in the memory
descriptor is used to determine the type for the loop induction
variable.
Note that there is currently no difference between memory
descriptors for main memory and local store. It's up to the user to
make sure the memory descriptor settings make sense in the current
context. (this will probably change in the near future)
Note: get/put currently use loops rather than display lists for
transferring data over 16k.
"""
code = InstructionStream()
proc = Processor()
code.debug = True
spu.set_active_code(code)
# Create a python array
data = extarray.extarray('I', range(data_size))
# Align the data in the array
#a_data = aligned_memory(data_size, typecode = 'I')
#a_data.copy_to(data.buffer_info()[0], data_size)
# Create memory descriptor for the data in main memory
data_desc = memory_desc('I')
#data_desc.from_array(a_data)
data_desc.from_array(data)
# Transfer the data to 0x0 in the local store
data_desc.get(code, 0)
# Create memory descriptor for the data in the local store for use
# in the iterator
lsa_data = memory_desc('i', 0, data_size)
# Add one to each value
for x in spu_vec_iter(code, lsa_data):
x.v = x + 1
# Transfer the data back to main memory
data_desc.put(code, 0)
dma.spu_write_out_mbox(code, 0xCAFE)
# Execute the synthetic program
# code.print_code()
spe_id = proc.execute(code, async=True)
proc.join(spe_id)
# Copy it back to the Python array
#a_data.copy_from(data.buffer_info()[0], data_size)
for i in xrange(data_size):
assert (data[i] == i + 1)
return
def MemoryDescExample(data_size = 20000):
"""
This example uses a memory descriptor to move 20k integers back and
forth between main memory and the SPU local store. Each value is
incremented by 1 while on the SPU.
Memory descriptors are a general purpose method for describing a
region of memory. Memory is described by a typecode, address, and
size. Memory descriptors can be initialized by hand or from an
array or buffer object.
For main memory, memory descriptors are useful for transfering data
between main memory and an SPU's local store. The get/put methods
on a memory descriptor generate the SPU code to move data of any
size between main memory and local store.
Memory descriptors can also be used with spu_vec_iters to describe
the region of memory to iterate over. The typecode in the memory
descriptor is used to determine the type for the loop induction
variable.
Note that there is currently no difference between memory
descriptors for main memory and local store. It's up to the user to
make sure the memory descriptor settings make sense in the current
context. (this will probably change in the near future)
Note: get/put currently use loops rather than display lists for
transferring data over 16k.
"""
code = env.InstructionStream()
proc = env.Processor()
code.debug = True
spu.set_active_code(code)
# Create a python array
data = extarray.extarray('I', range(data_size))
# Align the data in the array
#a_data = aligned_memory(data_size, typecode = 'I')
#a_data.copy_to(data.buffer_info()[0], data_size)
# Create memory descriptor for the data in main memory
data_desc = memory_desc('I')
#data_desc.from_array(a_data)
data_desc.from_array(data)
# Transfer the data to 0x0 in the local store
data_desc.get(code, 0)
# Create memory descriptor for the data in the local store for use
# in the iterator
lsa_data = memory_desc('i', 0, data_size)
# Add one to each value
for x in spu_vec_iter(code, lsa_data):
x.v = x + 1
# Transfer the data back to main memory
data_desc.put(code, 0)
dma.spu_write_out_mbox(code, 0xCAFE)
# Execute the synthetic program
# code.print_code()
spe_id = proc.execute(code, async=True)
proc.join(spe_id)
# Copy it back to the Python array
#a_data.copy_from(data.buffer_info()[0], data_size)
for i in xrange(data_size):
assert(data[i] == i + 1)
return