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#!/usr/bin/env python
"""
Python interface to CUBLAS-XT functions.
Note: this module does not explicitly depend on PyCUDA.
"""
import ctypes
from .cublas import cublasCheckStatus, _libcublas, _CUBLAS_OP, _types
from . import cuda
_CUBLAS_XT_OP_TYPE = {
0: 0, # CUBLASXT_FLOAT
1: 1, # CUBLASXT_DOUBLE
2: 2, # CUBLASXT_COMPLEX
3: 3, # CUBLASXT_DOUBLECOMPLEX
}
_CUBLAS_XT_BLAS_OP = {
0 : 0, # CUBLASXT_GEMM
1: 1, # CUBLASXT_SYRK
2: 2, # CUBLASXT_HERK
3: 3, # CUBLASXT_SYMM
4: 4, # CUBLASXT_HEMM
5: 5, # CUBLASXT_TRSM
6: 6, # CUBLASXT_SYR2K
7: 7, # CUBLASXT_HER2K
8: 8, # CUBLASXT_SPMM
9: 9, # CUBLASXT_SYRKX
10: 10, # CUBLASXT_HERKX
11: 11, # CUBLASXT_TRMM
12: 12, # CUBLASXT_ROUTINE_MAX
}
_CUBLAS_XT_PINNING_MEM_MODE = {
0: 0, # CUBLASXT_PINNING_DISABLED
1: 1, # CUBLASXT_PINNING_ENABLED
}
_libcublas.cublasXtCreate.restype = int
_libcublas.cublasXtCreate.argtypes = [_types.handle]
def cublasXtCreate():
handle = _types.handle()
status = _libcublas.cublasXtCreate(ctypes.byref(handle))
cublasCheckStatus(status)
return handle.value
_libcublas.cublasXtDestroy.restype = int
_libcublas.cublasXtDestroy.argtypes = [_types.handle]
def cublasXtDestroy(handle):
status = _libcublas.cublasXtDestroy(handle)
cublasCheckStatus(status)
_libcublas.cublasXtGetNumBoards.restype = int
_libcublas.cublasXtGetNumBoards.argtypes = [ctypes.c_int,
ctypes.c_void_p,
ctypes.c_void_p]
def cublasXtGetNumBoards(nbDevices, deviceId):
nbBoards = ctypes.c_int()
status = _libcublas.cublasXtGetNumBoards(nbDevices, deviceId, ctypes.byref(nbBoards))
cublasCheckStatus(status)
return nbBoards.value
_libcublas.cublasXtMaxBoards.restype = int
_libcublas.cublasXtMaxBoards.argtypes = [ctypes.c_void_p]
def cublasXtMaxBoards():
nbGpuBoards = ctypes.c_int()
status = _libcublas.cublasXtMaxBoards(ctypes.byref(nbGpuBoards))
cublasCheckStatus(status)
return nbGpuBoards.value
_libcublas.cublasXtDeviceSelect.restype = int
_libcublas.cublasXtDeviceSelect.argtypes = [_types.handle,
ctypes.c_int,
ctypes.c_void_p]
def cublasXtDeviceSelect(handle, nbDevices, deviceId):
status = _libcublas.cublasXtDeviceSelect(handle, nbDevices, deviceId.ctypes.data)
cublasCheckStatus(status)
_libcublas.cublasXtSetBlockDim.restype = int
_libcublas.cublasXtSetBlockDim.argtypes = [_types.handle,
ctypes.c_void_p]
def cublasXtSetBlockDim(handle, blockDim):
status = _libcublas.cublasXtSetBlockDim(handle, blockDim)
cublasCheckStatus(status)
_libcublas.cublasXtGetBlockDim.restype = int
_libcublas.cublasXtGetBlockDim.argtypes = [_types.handle,
ctypes.c_void_p]
def cublasXtGetBlockDim(handle):
blockDim = ctypes.c_void_p()
status = _libcublas.cublasXtSetBlockDim(handle, ctypes.byref(blockDim))
cublasCheckStatus(status)
return blockDim.value
_libcublas.cublasXtSetCpuRoutine.restype = int
_libcublas.cublasXtSetCpuRoutine.argtypes = [_types.handle,
ctypes.c_int,
ctypes.c_int,
ctypes.c_void_p]
def cublasXtSetCpuRoutine(handle, blasOp, type, blasFunctor):
status = _libcublas.cublasXtSetCpuRoutine(handle, blasOp, type, blasFunctor)
cublasCheckStatus(status)
_libcublas.cublasXtSetCpuRatio.restype = int
_libcublas.cublasXtSetCpuRatio.argtypes = [_types.handle,
ctypes.c_int,
ctypes.c_int,
ctypes.c_float]
def cublasXtSetCpuRatio(handle, blasOp, type, ratio):
status = _libcublas.cublasXtSetCpuRatio(handle, blasOp, type, ratio)
cublasCheckStatus(status)
_libcublas.cublasXtSetPinningMemMode.restype = int
_libcublas.cublasXtSetPinningMemMode.argtypes = [_types.handle,
ctypes.c_int]
def cublasXtSetPinningMemMode(handle, mode):
status = _libcublas.cublasXtSetPinningMemMode(handle, mode)
cublasCheckStatus(status)
_libcublas.cublasXtSgemm.restype = int
_libcublas.cublasXtSgemm.argtypes = [_types.handle,
ctypes.c_int,
ctypes.c_int,
ctypes.c_size_t,
ctypes.c_size_t,
ctypes.c_size_t,
ctypes.c_void_p,
ctypes.c_void_p,
ctypes.c_size_t,
ctypes.c_void_p,
ctypes.c_size_t,
ctypes.c_void_p,
ctypes.c_void_p,
ctypes.c_size_t]
def cublasXtSgemm(handle, transa, transb, m, n, k, alpha, A, lda, B, ldb,
beta, C, ldc):
status = _libcublas.cublasXtSgemm(handle,
_CUBLAS_OP[transa],
_CUBLAS_OP[transb], m, n, k,
ctypes.byref(ctypes.c_float(alpha)),
int(A), lda, int(B), ldb,
ctypes.byref(ctypes.c_float(beta)),
int(C), ldc)
cublasCheckStatus(status)
_libcublas.cublasXtDgemm.restype = int
_libcublas.cublasXtDgemm.argtypes = [_types.handle,
ctypes.c_int,
ctypes.c_int,
ctypes.c_size_t,
ctypes.c_size_t,
ctypes.c_size_t,
ctypes.c_void_p,
ctypes.c_void_p,
ctypes.c_size_t,
ctypes.c_void_p,
ctypes.c_size_t,
ctypes.c_void_p,
ctypes.c_void_p,
ctypes.c_size_t]
def cublasXtDgemm(handle, transa, transb, m, n, k, alpha, A, lda, B, ldb,
beta, C, ldc):
status = _libcublas.cublasXtDgemm(handle,
_CUBLAS_OP[transa],
_CUBLAS_OP[transb], m, n, k,
ctypes.byref(ctypes.c_double(alpha)),
int(A), lda, int(B), ldb,
ctypes.byref(ctypes.c_double(beta)),
int(C), ldc)
cublasCheckStatus(status)
_libcublas.cublasXtCgemm.restype = int
_libcublas.cublasXtCgemm.argtypes = [_types.handle,
ctypes.c_int,
ctypes.c_int,
ctypes.c_size_t,
ctypes.c_size_t,
ctypes.c_size_t,
ctypes.c_void_p,
ctypes.c_void_p,
ctypes.c_size_t,
ctypes.c_void_p,
ctypes.c_size_t,
ctypes.c_void_p,
ctypes.c_void_p,
ctypes.c_size_t]
def cublasXtCgemm(handle, transa, transb, m, n, k, alpha, A, lda, B, ldb,
beta, C, ldc):
status = _libcublas.cublasXtCgemm(handle,
_CUBLAS_OP[transa],
_CUBLAS_OP[transb], m, n, k,
ctypes.byref(cuda.cuFloatComplex(alpha.real,
alpha.imag)),
int(A), lda, int(B), ldb,
ctypes.byref(cuda.cuFloatComplex(beta.real,
beta.imag)),
int(C), ldc)
cublasCheckStatus(status)
_libcublas.cublasXtZgemm.restype = int
_libcublas.cublasXtZgemm.argtypes = [_types.handle,
ctypes.c_int,
ctypes.c_int,
ctypes.c_size_t,
ctypes.c_size_t,
ctypes.c_size_t,
ctypes.c_void_p,
ctypes.c_void_p,
ctypes.c_size_t,
ctypes.c_void_p,
ctypes.c_size_t,
ctypes.c_void_p,
ctypes.c_void_p,
ctypes.c_size_t]
def cublasXtZgemm(handle, transa, transb, m, n, k, alpha, A, lda, B, ldb,
beta, C, ldc):
status = _libcublas.cublasXtZgemm(handle,
_CUBLAS_OP[transa],
_CUBLAS_OP[transb], m, n, k,
ctypes.byref(cuda.cuDoubleComplex(alpha.real,
alpha.imag)),
int(A), lda, int(B), ldb,
ctypes.byref(cuda.cuDoubleComplex(beta.real,
beta.imag)),
int(C), ldc)
cublasCheckStatus(status)
|
