def expansion(node, state, sdfg):
node.validate(sdfg, state)
(_, adesc, ashape,
astrides), (_, bdesc, bshape,
bstrides), _ = _get_matmul_operands(node, state, sdfg)
dtype = adesc.dtype.base_type
func = to_blastype(dtype.type).lower() + 'gemm'
alpha = f'{dtype.ctype}({node.alpha})'
beta = f'{dtype.ctype}({node.beta})'
# Deal with complex input constants
if isinstance(node.alpha, complex):
alpha = f'{dtype.ctype}({node.alpha.real}, {node.alpha.imag})'
if isinstance(node.beta, complex):
beta = f'{dtype.ctype}({node.beta.real}, {node.beta.imag})'
cdesc = sdfg.arrays[state.out_edges(node)[0].data.data]
check_access(dtypes.ScheduleType.CPU_Multicore, adesc, bdesc, cdesc)
opt = _get_codegen_gemm_opts(node, state, sdfg, adesc, bdesc, cdesc,
alpha, beta, dtype.ctype, func)
# Adaptations for BLAS API
opt['ta'] = 'CblasNoTrans' if opt['ta'] == 'N' else 'CblasTrans'
opt['tb'] = 'CblasNoTrans' if opt['tb'] == 'N' else 'CblasTrans'
code = ''
if dtype in (dace.complex64, dace.complex128):
code = f'''
{dtype.ctype} alpha = {alpha};
{dtype.ctype} beta = {beta};
'''
opt['alpha'] = '&alpha'
opt['beta'] = '&beta'
code += ("cblas_{func}(CblasColMajor, {ta}, {tb}, "
"{M}, {N}, {K}, {alpha}, {x}, {lda}, {y}, {ldb}, {beta}, "
"_c, {ldc});").format_map(opt)
tasklet = dace.sdfg.nodes.Tasklet(
node.name,
node.in_connectors,
node.out_connectors,
code,
language=dace.dtypes.Language.CPP,
)
return tasklet
def expansion(node, state, sdfg):
node.validate(sdfg, state)
(_, adesc, ashape,
astrides), (_, bdesc, bshape,
bstrides), _ = _get_matmul_operands(node, state, sdfg)
cdesc = sdfg.arrays[state.out_edges(node)[0].data.data]
check_access(dtypes.ScheduleType.CPU_Multicore, adesc, bdesc, cdesc)
dtype = cdesc.dtype.base_type
func = to_blastype(dtype.type).lower() + 'gemm'
if dtype == dace.float32:
alpha = "1.0f"
beta = "0.0f"
elif dtype == dace.float64:
alpha = "1.0"
beta = "0.0"
elif dtype == dace.complex64:
alpha = "dace::blas::BlasConstants::Get().Complex64Pone()"
beta = "dace::blas::BlasConstants::Get().Complex64Zero()"
elif dtype == dace.complex128:
alpha = "dace::blas::BlasConstants::Get().Complex128Pone()"
beta = "dace::blas::BlasConstants::Get().Complex128Zero()"
else:
raise ValueError("Unsupported type for BLAS dot product: " +
str(dtype))
opt = _get_codegen_gemm_opts(node, state, sdfg, adesc, bdesc, cdesc,
alpha, beta, cdesc.dtype.ctype, func)
# Adaptations for MKL/BLAS API
opt['ta'] = 'CblasNoTrans' if opt['ta'] == 'N' else 'CblasTrans'
opt['tb'] = 'CblasNoTrans' if opt['tb'] == 'N' else 'CblasTrans'
code = '''
for (int __ib = 0; __ib < {BATCH}; ++__ib) {{
cblas_{func}(CblasColMajor, {ta}, {tb}, {M}, {N}, {K}, {alpha},
(({dtype}*){x}) + __ib*{stride_a}, {lda},
(({dtype}*){y}) + __ib*{stride_b}, {ldb},
{beta},
(({dtype}*)_c) + __ib*{stride_c}, {ldc});
}}'''.format_map(opt)
tasklet = dace.sdfg.nodes.Tasklet(node.name,
node.in_connectors,
node.out_connectors,
code,
language=dace.dtypes.Language.CPP)
return tasklet
def expansion(node, state, sdfg):
node.validate(sdfg, state)
(_, adesc, ashape,
astrides), (_, bdesc, bshape,
bstrides), _ = _get_matmul_operands(node, state, sdfg)
dtype = adesc.dtype.base_type
func = to_blastype(dtype.type).lower() + 'gemm'
# TODO: Fix w.r.t. other alpha/beta values
if dtype == dace.float32:
alpha = "1.0f"
beta = "0.0f"
elif dtype == dace.float64:
alpha = "1.0"
beta = "0.0"
elif dtype == dace.complex64:
alpha = "dace::blas::BlasConstants::Get().Complex64Pone()"
beta = "dace::blas::BlasConstants::Get().Complex64Zero()"
elif dtype == dace.complex128:
alpha = "dace::blas::BlasConstants::Get().Complex128Pone()"
beta = "dace::blas::BlasConstants::Get().Complex128Zero()"
else:
raise ValueError("Unsupported type for BLAS dot product: " +
str(dtype))
cdesc = sdfg.arrays[state.out_edges(node)[0].data.data]
opt = _get_codegen_gemm_opts(node, state, sdfg, adesc, bdesc, cdesc,
alpha, beta, cdesc.dtype.ctype, func)
# Adaptations for MKL/BLAS API
opt['ta'] = 'CblasNoTrans' if opt['ta'] == 'N' else 'CblasTrans'
opt['tb'] = 'CblasNoTrans' if opt['tb'] == 'N' else 'CblasTrans'
code = ("cblas_{func}(CblasColMajor, {ta}, {tb}, "
"{M}, {N}, {K}, {alpha}, {x}, {lda}, {y}, {ldb}, {beta}, "
"_c, {ldc});").format_map(opt)
tasklet = dace.sdfg.nodes.Tasklet(node.name,
node.in_connectors,
node.out_connectors,
code,
language=dace.dtypes.Language.CPP)
return tasklet
def expansion(node, state, sdfg):
node.validate(sdfg, state)
# Find inputs and output
adesc, bdesc, cdesc = None, None, None
for e in state.in_edges(node):
if e.dst_conn == '_a':
anode = state.memlet_path(e)[0].src
if isinstance(anode, dace.sdfg.nodes.AccessNode):
adesc: dt.Array = sdfg.arrays[anode.data]
elif e.dst_conn == '_b':
bnode = state.memlet_path(e)[0].src
if isinstance(bnode, dace.sdfg.nodes.AccessNode):
bdesc: dt.Array = sdfg.arrays[bnode.data]
for e in state.out_edges(node):
if e.src_conn == '_c':
cnode = state.memlet_path(e)[-1].dst
if isinstance(cnode, dace.sdfg.nodes.AccessNode):
cdesc: dt.Array = sdfg.arrays[cnode.data]
if not adesc or not bdesc or not cdesc:
raise ValueError('Unsupported input/output arrays')
dtype = adesc.dtype.base_type
func = '%sgemm' % to_blastype(dtype.type)
if dtype == dace.float16:
cdtype = '__half'
factort = 'Half'
elif dtype == dace.float32:
cdtype = 'float'
factort = 'Float'
elif dtype == dace.float64:
cdtype = 'double'
factort = 'Double'
elif dtype == dace.complex64:
cdtype = 'cuComplex'
factort = 'Complex64'
elif dtype == dace.complex128:
cdtype = 'cuDoubleComplex'
factort = 'Complex128'
else:
raise ValueError("Unsupported type: " + str(dtype))
call_prefix = environments.cublas.cuBLAS.handle_setup_code(node)
call_suffix = ''
# Handle alpha / beta
constants = {
1.0:
f"__state->cublas_handle.Constants(__dace_cuda_device).{factort}Pone()",
#-1.0: f"__state->cublas_handle.Constants(__dace_cuda_device).{factort}Mone()",
0.0:
f"__state->cublas_handle.Constants(__dace_cuda_device).{factort}Zero()",
}
if node.alpha not in constants or node.beta not in constants:
# Deal with complex input constants
if isinstance(node.alpha, complex):
alpha = f'{dtype.ctype}({node.alpha.real}, {node.alpha.imag})'
else:
alpha = f'{dtype.ctype}({node.alpha})'
if isinstance(node.beta, complex):
beta = f'{dtype.ctype}({node.beta.real}, {node.beta.imag})'
else:
beta = f'{dtype.ctype}({node.beta})'
# Set pointer mode to host
call_prefix += f'''cublasSetPointerMode(__dace_cublas_handle, CUBLAS_POINTER_MODE_HOST);
{dtype.ctype} alpha = {alpha};
{dtype.ctype} beta = {beta};
'''
call_suffix += '''
cublasSetPointerMode(__dace_cublas_handle, CUBLAS_POINTER_MODE_DEVICE);
'''
alpha = f'({cdtype} *)&alpha'
beta = f'({cdtype} *)&beta'
else:
alpha = constants[node.alpha]
beta = constants[node.beta]
# Set up options for code formatting
opt = _get_codegen_gemm_opts(node, state, sdfg, adesc, bdesc, cdesc,
alpha, beta, cdtype, func)
# Matrix multiplication
call = '''cublas{func}(__dace_cublas_handle,
CUBLAS_OP_{ta}, CUBLAS_OP_{tb},
{M}, {N}, {K},
{alpha},
({dtype}*){x}, {lda},
({dtype}*){y}, {ldb},
{beta},
({dtype}*)_c, {ldc});'''
code = (call_prefix + call.format_map(opt) + call_suffix)
tasklet = dace.sdfg.nodes.Tasklet(
node.name,
node.in_connectors,
node.out_connectors,
code,
language=dace.dtypes.Language.CPP,
)
# If buffers are not on the GPU, copy them
if any(desc.storage not in
[dace.StorageType.GPU_Global, dace.StorageType.CPU_Pinned]
for desc in [adesc, bdesc, cdesc]):
nsdfg = dace.SDFG('nested_gemm')
for name, desc in [('_a', adesc), ('_b', bdesc), ('_c', cdesc)]:
if isinstance(desc, dt.View):
dcopy = desc.as_array()
else:
dcopy = dc(desc)
dcopy.lifetime = dtypes.AllocationLifetime.Scope
dcopy_gpu = dc(dcopy)
dcopy.transient = False
nsdfg.add_datadesc(name, dcopy)
dcopy_gpu.transient = True
dcopy_gpu.storage = dace.StorageType.GPU_Global
nsdfg.add_datadesc(name + '_gpu', dcopy_gpu)
nstate = nsdfg.add_state()
a = nstate.add_read('_a')
ga = nstate.add_access('_a_gpu')
b = nstate.add_read('_b')
gb = nstate.add_access('_b_gpu')
c = nstate.add_write('_c')
gc = nstate.add_access('_c_gpu')
# Reset code and connectors
tasklet.in_connectors = {
"_conn" + k: None
for k in tasklet.in_connectors
}
tasklet.out_connectors = {
"_conn" + k: None
for k in tasklet.out_connectors
}
call = '''cublas{func}(__dace_cublas_handle,
CUBLAS_OP_{ta}, CUBLAS_OP_{tb},
{M}, {N}, {K},
{alpha},
({dtype}*){x}, {lda},
({dtype}*){y}, {ldb},
{beta},
({dtype}*)_conn_c, {ldc});'''
opt['x'] = '_conn' + opt['x']
opt['y'] = '_conn' + opt['y']
tasklet.code.as_string = (call_prefix + call.format_map(opt) +
call_suffix)
nstate.add_node(tasklet)
nstate.add_nedge(a, ga, dace.Memlet.from_array('_a', adesc))
nstate.add_nedge(b, gb, dace.Memlet.from_array('_b', bdesc))
nstate.add_edge(ga, None, tasklet, '_conn_a',
dace.Memlet.from_array('_a_gpu', adesc))
nstate.add_edge(gb, None, tasklet, '_conn_b',
dace.Memlet.from_array('_b_gpu', bdesc))
nstate.add_edge(tasklet, '_conn_c', gc, None,
dace.Memlet.from_array('_c_gpu', cdesc))
nstate.add_nedge(gc, c, dace.Memlet.from_array('_c', cdesc))
if node.beta != 0.0:
rc = nstate.add_read('_c')
rgc = nstate.add_access('_c_gpu')
tasklet.add_in_connector('_conn_cin')
nstate.add_nedge(rc, rgc, dace.Memlet('_c'))
nstate.add_edge(rgc, None, tasklet, '_conn_cin',
dace.Memlet('_c_gpu'))
return nsdfg
# End of copy to GPU
return tasklet
def expansion(node, state, sdfg):
node.validate(sdfg, state)
# Find inputs and output
adesc, bdesc, cdesc = None, None, None
for e in state.in_edges(node):
if e.dst_conn == '_a':
anode = state.memlet_path(e)[0].src
if isinstance(anode, dace.sdfg.nodes.AccessNode):
adesc: dt.Array = sdfg.arrays[anode.data]
elif e.dst_conn == '_b':
bnode = state.memlet_path(e)[0].src
if isinstance(bnode, dace.sdfg.nodes.AccessNode):
bdesc: dt.Array = sdfg.arrays[bnode.data]
for e in state.out_edges(node):
if e.src_conn == '_c':
cnode = state.memlet_path(e)[-1].dst
if isinstance(cnode, dace.sdfg.nodes.AccessNode):
cdesc: dt.Array = sdfg.arrays[cnode.data]
if not adesc or not bdesc or not cdesc:
raise ValueError('Unsupported input/output arrays')
needs_copy = any(desc.storage not in (dace.StorageType.GPU_Global,
dace.StorageType.CPU_Pinned)
for desc in (adesc, bdesc, cdesc))
dtype = cdesc.dtype.base_type
func = '%sgemm' % to_blastype(dtype.type)
if dtype == dace.float16:
cdtype = '__half'
factort = 'Half'
elif dtype == dace.float32:
cdtype = 'float'
factort = 'Float'
elif dtype == dace.float64:
cdtype = 'double'
factort = 'Double'
elif dtype == dace.complex64:
cdtype = 'cuComplex'
factort = 'Complex64'
elif dtype == dace.complex128:
cdtype = 'cuDoubleComplex'
factort = 'Complex128'
else:
raise ValueError("Unsupported type: " + str(dtype))
call_prefix = environments.cublas.cuBLAS.handle_setup_code(node)
call_suffix = ''
# Handle alpha / beta
constants = {
1.0:
f"__state->cublas_handle.Constants(__dace_cuda_device).{factort}Pone()",
0.0:
f"__state->cublas_handle.Constants(__dace_cuda_device).{factort}Zero()",
}
if node.alpha not in constants:
# Deal with complex input constants
if isinstance(node.alpha, complex):
alpha = f'{dtype.ctype}({node.alpha.real}, {node.alpha.imag})'
else:
alpha = f'{dtype.ctype}({node.alpha})'
# Set pointer mode to host
call_prefix += f'''cublasSetPointerMode(__dace_cublas_handle, CUBLAS_POINTER_MODE_HOST);
{dtype.ctype} alpha = {alpha};
{dtype.ctype} beta = 0;
'''
call_suffix += '''
cublasSetPointerMode(__dace_cublas_handle, CUBLAS_POINTER_MODE_DEVICE);
'''
beta = f'({cdtype} *)&beta'
alpha = f'({cdtype} *)&alpha'
else:
alpha = constants[node.alpha]
beta = "__state->cublas_handle.Constants(__dace_cuda_device).%sZero()" % factort
# Set up options for code formatting
opt = _get_codegen_gemm_opts(node, state, sdfg, adesc, bdesc, cdesc,
alpha, beta, cdtype, func)
opt['array_prefix'] = '_' if needs_copy else ''
# Matrix multiplication
if (node.compute_type is None and node.accumulator_type is None
and node.algorithm is None):
call = '''cublas{func}StridedBatched(__dace_cublas_handle,
CUBLAS_OP_{ta}, CUBLAS_OP_{tb},
{M}, {N}, {K},
{alpha},
({dtype}*){array_prefix}{x}, {lda}, {stride_a},
({dtype}*){array_prefix}{y}, {ldb}, {stride_b},
{beta},
({dtype}*){array_prefix}_c, {ldc}, {stride_c},
{BATCH});'''.format_map(opt)
else:
if node.compute_type is not None:
acctype = node.compute_type
elif node.accumulator_type is not None:
acc_dtype: dtypes.typeclass = node.accumulator_type
acctype = f'CUBLAS_COMPUTE_{to_cublas_computetype(acc_dtype)}'
else:
acctype = f'CUBLAS_COMPUTE_{to_cublas_computetype(dtype)}'
algorithm = 'CUBLAS_GEMM_DEFAULT_TENSOR_OP'
if node.algorithm is not None:
algorithm = node.algorithm
call = f'''
cublasGemmStridedBatchedEx(__dace_cublas_handle,
CUBLAS_OP_{opt['ta']}, CUBLAS_OP_{opt['tb']},
{opt['M']}, {opt['N']}, {opt['K']},
{alpha},
{opt['array_prefix']}{opt['x']},
{dtype_to_cudadatatype(opt['xdtype'])},
{opt['lda']}, {opt['stride_a']},
{opt['array_prefix']}{opt['y']},
{dtype_to_cudadatatype(opt['ydtype'])},
{opt['ldb']}, {opt['stride_b']},
{beta},
{opt['array_prefix']}_c,
{dtype_to_cudadatatype(opt['cdtype'])},
{opt['ldc']}, {opt['stride_c']},
{opt['BATCH']},
{acctype}, {algorithm});
'''
code = call_prefix + call + call_suffix
tasklet = dace.sdfg.nodes.Tasklet(node.name,
node.in_connectors,
node.out_connectors,
code,
language=dace.dtypes.Language.CPP)
# If buffers are not on the GPU, copy them
if needs_copy:
nsdfg = dace.SDFG('nested_batched_matmul')
tasklet = dace.sdfg.nodes.Tasklet(
node.name, {
'__a': dtypes.pointer(adesc.dtype),
'__b': dtypes.pointer(bdesc.dtype)
}, {'__c': dtypes.pointer(cdesc.dtype)},
code,
language=dace.dtypes.Language.CPP)
for name, desc in [('_a', adesc), ('_b', bdesc), ('_c', cdesc)]:
if isinstance(desc, dt.View):
dcopy = desc.as_array()
else:
dcopy = dc(desc)
dcopy.transient = False
dcopy.lifetime = dtypes.AllocationLifetime.Scope
dcopy_gpu = dc(dcopy)
nsdfg.add_datadesc(name, dcopy)
dcopy_gpu.transient = True
dcopy_gpu.storage = dace.StorageType.GPU_Global
nsdfg.add_datadesc(name + '_gpu', dcopy_gpu)
nstate = nsdfg.add_state()
a = nstate.add_read('_a')
ga = nstate.add_access('_a_gpu')
b = nstate.add_read('_b')
gb = nstate.add_access('_b_gpu')
c = nstate.add_write('_c')
gc = nstate.add_access('_c_gpu')
nstate.add_node(tasklet)
nstate.add_nedge(a, ga, dace.Memlet.from_array('_a', adesc))
nstate.add_nedge(b, gb, dace.Memlet.from_array('_b', bdesc))
nstate.add_edge(ga, None, tasklet, '__a',
dace.Memlet.from_array('_a_gpu', adesc))
nstate.add_edge(gb, None, tasklet, '__b',
dace.Memlet.from_array('_b_gpu', bdesc))
nstate.add_edge(tasklet, '__c', gc, None,
dace.Memlet.from_array('_c_gpu', cdesc))
nstate.add_nedge(gc, c, dace.Memlet.from_array('_c', cdesc))
return nsdfg
# End of copy to GPU
return tasklet
def expansion(node, state, sdfg):
node.validate(sdfg, state)
dtype = node.dtype
func = '%sgemm' % to_blastype(dtype.type)
if dtype == dace.float16:
cdtype = '__half'
factort = 'Half'
elif dtype == dace.float32:
cdtype = 'float'
factort = 'Float'
elif dtype == dace.float64:
cdtype = 'double'
factort = 'Double'
elif dtype == dace.complex64:
cdtype = 'cuComplex'
factort = 'Complex64'
elif dtype == dace.complex128:
cdtype = 'cuDoubleComplex'
factort = 'Complex128'
else:
raise ValueError("Unsupported type: " + str(dtype))
alpha = "dace::blas::CublasConstants::Get(__dace_cuda_device).%sPone()" % factort
beta = "dace::blas::CublasConstants::Get(__dace_cuda_device).%sZero()" % factort
# Find inputs and output
adesc, bdesc, cdesc = None, None, None
for e in state.in_edges(node):
if e.dst_conn == '_a':
anode = state.memlet_path(e)[0].src
if isinstance(anode, dace.sdfg.nodes.AccessNode):
adesc: Array = sdfg.arrays[anode.data]
elif e.dst_conn == '_b':
bnode = state.memlet_path(e)[0].src
if isinstance(bnode, dace.sdfg.nodes.AccessNode):
bdesc: Array = sdfg.arrays[bnode.data]
for e in state.out_edges(node):
if e.src_conn == '_c':
cnode = state.memlet_path(e)[-1].dst
if isinstance(cnode, dace.sdfg.nodes.AccessNode):
cdesc: Array = sdfg.arrays[cnode.data]
if not adesc or not bdesc or not cdesc:
raise ValueError('Unsupported input/output arrays')
# Set up options for code formatting
opt = _get_codegen_gemm_opts(node, state, sdfg, adesc, bdesc, cdesc,
alpha, beta, cdtype, func)
# Matrix multiplication
call = '''cublas{func}(__dace_cublas_handle,
CUBLAS_OP_{ta}, CUBLAS_OP_{tb},
{M}, {N}, {K},
{alpha},
({dtype}*){x}, {lda},
({dtype}*){y}, {ldb},
{beta},
({dtype}*)_c, {ldc});'''
code = (environments.cublas.cuBLAS.handle_setup_code(node) +
call.format_map(opt))
tasklet = dace.sdfg.nodes.Tasklet(node.name,
node.in_connectors,
node.out_connectors,
code,
language=dace.dtypes.Language.CPP)
# If buffers are not on the GPU, copy them
# TODO: This creates variable shadowing
if any(desc.storage not in
[dace.StorageType.GPU_Global, dace.StorageType.CPU_Pinned]
for desc in [adesc, bdesc, cdesc]):
nsdfg = dace.SDFG('nested_gemm')
for name, desc in [('_a', adesc), ('_b', bdesc), ('_c', cdesc)]:
dcopy = dc(desc)
dcopy.transient = False
nsdfg.add_datadesc(name, dcopy)
dcopy_gpu = dc(desc)
dcopy_gpu.transient = True
dcopy_gpu.storage = dace.StorageType.GPU_Global
nsdfg.add_datadesc(name + '_gpu', dcopy_gpu)
nstate = nsdfg.add_state()
a = nstate.add_read('_a')
ga = nstate.add_access('_a_gpu')
b = nstate.add_read('_b')
gb = nstate.add_access('_b_gpu')
c = nstate.add_write('_c')
gc = nstate.add_access('_c_gpu')
tasklet.in_connectors = {
"_conn" + k: None
for k in tasklet.in_connectors
}
tasklet.out_connectors = {
"_conn" + k: None
for k in tasklet.out_connectors
}
nstate.add_node(tasklet)
nstate.add_nedge(a, ga, dace.Memlet.from_array('_a', adesc))
nstate.add_nedge(b, gb, dace.Memlet.from_array('_b', bdesc))
nstate.add_edge(ga, None, tasklet, '_conn_a',
dace.Memlet.from_array('_a_gpu', adesc))
nstate.add_edge(gb, None, tasklet, '_conn_b',
dace.Memlet.from_array('_b_gpu', bdesc))
nstate.add_edge(tasklet, '_conn_c', gc, None,
dace.Memlet.from_array('_c_gpu', cdesc))
nstate.add_nedge(gc, c, dace.Memlet.from_array('_c', cdesc))
return nsdfg
# End of copy to GPU
return tasklet
def expansion(node, state, sdfg):
node.validate(sdfg, state)
# Find inputs and output
adesc, bdesc, cdesc = None, None, None
for e in state.in_edges(node):
if e.dst_conn == '_a':
anode = state.memlet_path(e)[0].src
if isinstance(anode, dace.sdfg.nodes.AccessNode):
adesc: dt.Array = sdfg.arrays[anode.data]
elif e.dst_conn == '_b':
bnode = state.memlet_path(e)[0].src
if isinstance(bnode, dace.sdfg.nodes.AccessNode):
bdesc: dt.Array = sdfg.arrays[bnode.data]
for e in state.out_edges(node):
if e.src_conn == '_c':
cnode = state.memlet_path(e)[-1].dst
if isinstance(cnode, dace.sdfg.nodes.AccessNode):
cdesc: dt.Array = sdfg.arrays[cnode.data]
if not adesc or not bdesc or not cdesc:
raise ValueError('Unsupported input/output arrays')
dtype = cdesc.dtype.base_type
func = '%sgemm' % to_blastype(dtype.type)
if dtype == dace.float16:
cdtype = '__half'
factort = 'Half'
elif dtype == dace.float32:
cdtype = 'float'
factort = 'Float'
elif dtype == dace.float64:
cdtype = 'double'
factort = 'Double'
elif dtype == dace.complex64:
cdtype = 'cuComplex'
factort = 'Complex64'
elif dtype == dace.complex128:
cdtype = 'cuDoubleComplex'
factort = 'Complex128'
else:
raise ValueError("Unsupported type: " + str(dtype))
alpha = "__state->cublas_handle.Constants(__dace_cuda_device).%sPone()" % factort
beta = "__state->cublas_handle.Constants(__dace_cuda_device).%sZero()" % factort
# Set up options for code formatting
opt = _get_codegen_gemm_opts(node, state, sdfg, adesc, bdesc, cdesc,
alpha, beta, cdtype, func)
# Matrix multiplication
call = '''cublas{func}StridedBatched(__dace_cublas_handle,
CUBLAS_OP_{ta}, CUBLAS_OP_{tb},
{M}, {N}, {K},
{alpha},
({dtype}*){array_prefix}{x}, {lda}, {stride_a},
({dtype}*){array_prefix}{y}, {ldb}, {stride_b},
{beta},
({dtype}*){array_prefix}_c, {ldc}, {stride_c},
{BATCH});'''
opt['array_prefix'] = ''
code = (environments.cublas.cuBLAS.handle_setup_code(node) +
call.format_map(opt))
tasklet = dace.sdfg.nodes.Tasklet(node.name,
node.in_connectors,
node.out_connectors,
code,
language=dace.dtypes.Language.CPP)
# If buffers are not on the GPU, copy them
# TODO: doesn't work when storage is Default and Default=GPU_Global
if any(desc.storage not in
[dace.StorageType.GPU_Global, dace.StorageType.CPU_Pinned]
for desc in [adesc, bdesc, cdesc]):
nsdfg = dace.SDFG('nested_batched_matmul')
opt['array_prefix'] = '_'
code = (environments.cublas.cuBLAS.handle_setup_code(node) +
call.format_map(opt))
tasklet = dace.sdfg.nodes.Tasklet(
node.name, {
'__a': dtypes.pointer(adesc.dtype),
'__b': dtypes.pointer(bdesc.dtype)
}, {'__c': dtypes.pointer(cdesc.dtype)},
code,
language=dace.dtypes.Language.CPP)
for name, desc in [('_a', adesc), ('_b', bdesc), ('_c', cdesc)]:
if isinstance(desc, dt.View):
dcopy = desc.as_array()
else:
dcopy = dc(desc)
dcopy.transient = False
dcopy.lifetime = dtypes.AllocationLifetime.Scope
dcopy_gpu = dc(dcopy)
nsdfg.add_datadesc(name, dcopy)
dcopy_gpu.transient = True
dcopy_gpu.storage = dace.StorageType.GPU_Global
nsdfg.add_datadesc(name + '_gpu', dcopy_gpu)
nstate = nsdfg.add_state()
a = nstate.add_read('_a')
ga = nstate.add_access('_a_gpu')
b = nstate.add_read('_b')
gb = nstate.add_access('_b_gpu')
c = nstate.add_write('_c')
gc = nstate.add_access('_c_gpu')
nstate.add_node(tasklet)
nstate.add_nedge(a, ga, dace.Memlet.from_array('_a', adesc))
nstate.add_nedge(b, gb, dace.Memlet.from_array('_b', bdesc))
nstate.add_edge(ga, None, tasklet, '__a',
dace.Memlet.from_array('_a_gpu', adesc))
nstate.add_edge(gb, None, tasklet, '__b',
dace.Memlet.from_array('_b_gpu', bdesc))
nstate.add_edge(tasklet, '__c', gc, None,
dace.Memlet.from_array('_c_gpu', cdesc))
nstate.add_nedge(gc, c, dace.Memlet.from_array('_c', cdesc))
return nsdfg
# End of copy to GPU
return tasklet
