def check_fence_and_lock(gatype):
if 0 == me:
print '> Checking ga.fence and ga.lock',
g_a = create_global_array(gatype)
ga.zero(g_a)
if not ga.create_mutexes(1):
ga.error('ga.create_mutexes failed')
if n < 2:
ga.error('insufficient n to test ga.fence', n)
ga.lock(0)
a = ga.get(g_a) # get original values
a[:,0] += 1 # add my contribution
# need to use fence to assure that coms complete before leaving
# critical section
ga.init_fence()
ga.put(g_a, a)
ga.fence()
ga.unlock(0)
if not ga.destroy_mutexes():
ga.error('mutex not destroyed')
ga.sync()
if 0 == me:
a = ga.get(g_a)
if not np.all(a[:,0] == nproc):
ga.error('fence failed')
if 0 == me:
print 'OK'
def check_zero(gatype):
if 0 == me:
print '> Checking zero ...',
g_a = create_global_array(gatype)
ga.zero(g_a)
a = ga.get(g_a)
if not np.all(a == 0):
ga.error('ga.zero failed')
if 0 == me:
print 'OK'
ga.destroy(g_a)
def test2D():
n = 1024
buf = np.zeros((n,n), dtype=np.float64)
chunk = np.asarray([1,3,4,9,16,24,30,48,64,91,128,171,256,353,440,512])
g_a = ga.create(ga.C_DBL, (n,n), 'a')
if 0 == g_a:
ga.error('ga.create failed')
buf[:] = 0.01
ga.zero(g_a)
if 0 == me:
print (' Performance of GA get, put & acc'
' for square sections of array[%d,%d]' % (n,n))
lo,hi = ga.distribution(g_a, me)
# local ops
TestPutGetAcc(g_a, n, chunk, buf, lo, hi, True)
# remote ops
TestPutGetAcc(g_a, n, chunk, buf, lo, hi, False)
def test2D():
n = 1024
buf = np.zeros((n, n), dtype=np.float64)
chunk = np.asarray(
[1, 3, 4, 9, 16, 24, 30, 48, 64, 91, 128, 171, 256, 353, 440, 512])
g_a = ga.create(ga.C_DBL, (n, n), 'a')
if 0 == g_a:
ga.error('ga.create failed')
buf[:] = 0.01
ga.zero(g_a)
if 0 == me:
print(
' Performance of GA get, put & acc'
' for square sections of array[%d,%d]' % (n, n))
lo, hi = ga.distribution(g_a, me)
# local ops
TestPutGetAcc(g_a, n, chunk, buf, lo, hi, True)
# remote ops
TestPutGetAcc(g_a, n, chunk, buf, lo, hi, False)
def test1D():
n = 1024*1024
buf = np.zeros(n/4, dtype=np.float64)
chunk = np.asarray([1,9,16,81,256,576,900,2304,4096,8281,
16384,29241,65536,124609,193600,262144])
g_a = ga.create(ga.C_DBL, (n,), 'a')
if 0 == g_a:
ga.error('ga.create failed')
buf[:] = 0.01
ga.zero(g_a)
if 0 == me:
print ''
print ''
print ''
print (' Performance of GA get, put & acc'
' for 1-dimensional sections of array[%d]' % n)
lo,hi = ga.distribution(g_a, me)
# local ops
TestPutGetAcc1(g_a, n, chunk, buf, lo, hi, True)
# remote ops
TestPutGetAcc1(g_a, n, chunk, buf, lo, hi, False)
def check_accumulate_overlap(gatype):
if 0 == me:
print '> Checking overlapping accumulate ...',
g_a = create_global_array(gatype)
ga.zero(g_a)
ga.acc(g_a, [1], (n/2,n/2), (n/2+1,n/2+1), 1)
ga.sync()
if MIRROR:
if 0 == iproc:
x = abs(ga.get(g_a, (n/2,n/2), (n/2+1,n/2+1))[0,0] - lprocs)
if not 0 == x:
ga.error('overlapping accumulate failed -- expected %s got %s'%(
x, lprocs))
else:
if 0 == me:
x = abs(ga.get(g_a, (n/2,n/2), (n/2+1,n/2+1))[0,0] - nproc)
if not 0 == x:
ga.error('overlapping accumulate failed -- expected %s got %s'%(
x, nproc))
if 0 == me:
print 'OK'
ga.destroy(g_a)
def test1D():
n = 1024 * 1024
buf = np.zeros(n / 4, dtype=np.float64)
chunk = np.asarray([
1, 9, 16, 81, 256, 576, 900, 2304, 4096, 8281, 16384, 29241, 65536,
124609, 193600, 262144
])
g_a = ga.create(ga.C_DBL, (n, ), 'a')
if 0 == g_a:
ga.error('ga.create failed')
buf[:] = 0.01
ga.zero(g_a)
if 0 == me:
print ''
print ''
print ''
print(
' Performance of GA get, put & acc'
' for 1-dimensional sections of array[%d]' % n)
lo, hi = ga.distribution(g_a, me)
# local ops
TestPutGetAcc1(g_a, n, chunk, buf, lo, hi, True)
# remote ops
TestPutGetAcc1(g_a, n, chunk, buf, lo, hi, False)
nprocs = ga.nnodes()
myrank = ga.nodeid()
g_pi = ga.create(ga.C_DBL, [1])
one_time = False
if len(sys.argv) == 2:
n = int(sys.argv[1])
one_time = True
while True:
if not one_time:
if myrank == 0:
n = get_n()
n = ga.brdcst(n)
else:
n = ga.brdcst(0)
if n == 0:
break
ga.zero(g_pi)
mypi = comp_pi(n, myrank, nprocs)
ga.acc(g_pi, mypi)
ga.sync()
if myrank == 0:
pi = ga.get(g_pi)[0]
prn_pi(pi, PI)
if one_time:
break
ga.destroy(g_pi)
v = np.dot(a, b)
val = int(np.abs(np.sum(c - v)) > 0.0001)
val = ga.gop_add(val)
return val == 0
if __name__ == '__main__':
if nproc > MULTIPLIER**3:
if 0 == me:
print "You must use less than %s processors" % (MULTIPLIER**3 + 1)
else:
g_a = ga.create(ga.C_DBL, [N, N])
g_b = ga.create(ga.C_DBL, [N, N])
g_c = ga.create(ga.C_DBL, [N, N])
g_counter = ga.create(ga.C_INT, [1])
ga.zero(g_counter)
# put some fake data into input arrays A and B
if me == 0:
ga.put(g_a, np.random.random(N * N))
ga.put(g_b, np.random.random(N * N))
ga.sync()
if me == 0:
print "srumma...",
srumma(g_a, g_b, g_c, CHUNK_SIZE, MULTIPLIER, g_counter)
if me == 0:
print "done"
if me == 0:
print "verifying using ga.gemm...",
ok = verify_using_ga(g_a, g_b, g_c)
if me == 0:
if ok:
def main():
# TODO there's got to be a loopless, more pythonic way to do this
ii = 0
for i in range(num1*num1):
ii += 1
if ii > num1:
ii = 0
h0[i] = ii
# compute times assuming 500 mflops and 5 second target time
# ntimes = max(3.0, 5.0/(4.0-9*num**3))
ntimes = 5
for ii in range(howmany):
num_m = nums_m[ii]
num_n = nums_n[ii]
num_k = nums_k[ii]
a = 0.5/(num_m*num_n)
if num_m > nummax or num_n > nummax or num_k > nummax:
ga.error('Insufficient memory: check nummax')
if BLOCK_CYCLIC:
block_size = [128,128]
g_c = ga.create_handle()
ga.set_data(g_c, (num_m,num_n), ga.C_DBL)
ga.set_array_name(g_c, 'g_c')
ga.set_block_cyclic(g_c, block_size)
if not ga.allocate(g_c):
ga.error('create failed')
block_size = [128,128]
g_b = ga.create_handle()
ga.set_data(g_b, (num_k,num_n), ga.C_DBL)
ga.set_array_name(g_b, 'g_b')
ga.set_block_cyclic(g_b, block_size)
if not ga.allocate(g_b):
ga.error('create failed')
block_size = [128,128]
g_a = ga.create_handle()
ga.set_data(g_a, (num_m,num_k), ga.C_DBL)
ga.set_array_name(g_a, 'g_a')
ga.set_block_cyclic(g_a, block_size)
if not ga.allocate(g_a):
ga.error('create failed')
else:
g_a = ga.create(ga.C_DBL, (num_m,num_k), 'g_a')
g_b = ga.create(ga.C_DBL, (num_k,num_n), 'g_b')
g_c = ga.create(ga.C_DBL, (num_m,num_n), 'g_c')
for handle in [g_a,g_b,g_c]:
if 0 == handle:
ga.error('create failed')
# initialize matrices A and B
if 0 == me:
load_ga(g_a, h0, num_m, num_k)
load_ga(g_b, h0, num_k, num_n)
ga.zero(g_c)
ga.sync()
if 0 == me:
print '\nMatrix Multiplication C = A[%d,%d] x B[%d,%d]\n' % (
num_m, num_k, num_k, num_n)
print ' %4s %12s %12s %7s %7s'%(
"Run#", "Time (seconds)", "mflops/proc",
"A trans", "B trans")
avg_t[:] = 0
avg_mf[:] = 0
for itime in range(ntimes):
for i in range(ntrans):
ga.sync()
ta = transa[i]
tb = transb[i]
t1 = time.time()
ga.gemm(ta,tb,num_m,num_n,num_k,1,g_a,g_b,0,g_c)
t1 = time.time() - t1
if 0 == me:
mf = 2*num_m*num_n*num_k/t1*10**-6/nproc
avg_t[i] += t1
avg_mf[i] += mf
print ' %4d %12.4f %12.1f %7s %7s'%(
itime+1, t1, mf, ta, tb)
if VERIFY and itime == 0:
verify_ga_gemm(ta, tb, num_m, num_n, num_k,
1.0, g_a, g_b, 0.0, g_c)
if 0 == me:
print ''
for i in range(ntrans):
print 'Average: %12.4f seconds %12.1f mflops/proc %s %s'%(
avg_t[i]/ntimes, avg_mf[i]/ntimes,
transa[i], transb[i])
if VERIFY:
print 'All ga.gemms are verified...O.K.'
def convergence_test_L2(g_a, g_b):
# compute L2 norm of change
# subtract g_b from g_a, results stored in g_b
ga.add(g_a, g_b, g_b, beta=-1)
# compute elementwise dot product (i.e. treats N-d arrays as vectors)
value = ga.dot(g_b, g_b)
if DEBUG:
print_sync(value)
return value < EPSILON
# create GA, distribute entire rows
g_a = ga.create_ghosts(ga.C_FLOAT, (dim,dim), (1,1), chunk=(0,dim))
# create a duplicate GA for the convergence test
g_b = ga.duplicate(g_a)
ga.zero(g_a)
(rlo,clo),(rhi,chi) = ga.distribution(g_a)
def set_boundary_conditions_put(g_a):
# process 0 initializes global array
# this would only set the initial conditions since we are putting an entire
# zeros array with the outer elements changed
if rank == 0:
a = np.zeros((dim,dim), dtype=np.float32)
a[0,:] = 100 #top row
a[:,0] = 75 #left column
a[:,a.shape[0] - 1] = 50 #right column
ga.put(g_a, a)
ga.sync()
def set_boundary_conditions_access(g_a):
c = ga.get(g_c)
v = np.dot(a,b)
val = int(np.abs(np.sum(c-v))>0.0001)
val = ga.gop_add(val)
return val == 0
if __name__ == '__main__':
if nproc > MULTIPLIER**3:
if 0 == me:
print "You must use less than %s processors" % (MULTIPLIER**3+1)
else:
g_a = ga.create(ga.C_DBL, [N,N])
g_b = ga.create(ga.C_DBL, [N,N])
g_c = ga.create(ga.C_DBL, [N,N])
g_counter = ga.create(ga.C_INT, [1])
ga.zero(g_counter)
# put some fake data into input arrays A and B
if me == 0:
ga.put(g_a, np.random.random(N*N))
ga.put(g_b, np.random.random(N*N))
ga.sync()
if me == 0:
print "srumma...",
srumma(g_a, g_b, g_c, CHUNK_SIZE, MULTIPLIER, g_counter)
if me == 0:
print "done"
if me == 0:
print "verifying using ga.gemm...",
ok = verify_using_ga(g_a, g_b, g_c)
if me == 0:
if ok:
nprocs = ga.nnodes()
myrank = ga.nodeid()
g_pi = ga.create(ga.C_DBL, [1])
one_time = False
if len(sys.argv) == 2:
n = int(sys.argv[1])
one_time = True
while True:
if not one_time:
if myrank == 0:
n = get_n()
n = ga.brdcst(n)
else:
n = ga.brdcst(0)
if n == 0:
break
ga.zero(g_pi)
mypi = comp_pi(n, myrank, nprocs)
ga.acc(g_pi, mypi)
ga.sync()
if myrank == 0:
pi = ga.get(g_pi)[0]
prn_pi(pi, PI)
if one_time:
break
ga.destroy(g_pi)