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from pygpu.gpuarray import GpuArrayException
from pygpu.gpuarray cimport (_GpuArray, GpuArray, GA_NO_ERROR, GpuArray_error,
pygpu_copy, pygpu_empty, pygpu_zeros,
GA_ANY_ORDER, GA_F_ORDER, GpuArray_ISONESEGMENT)
cdef extern from "gpuarray/buffer_blas.h":
ctypedef enum cb_transpose:
cb_no_trans,
cb_trans,
cb_conj_trans
cdef extern from "gpuarray/blas.h":
int GpuArray_rdot(_GpuArray *X, _GpuArray *Y, _GpuArray *Z, int nocopy)
int GpuArray_rgemv(cb_transpose transA, double alpha, _GpuArray *A,
_GpuArray *X, double beta, _GpuArray *Y, int nocopy)
int GpuArray_rgemm(cb_transpose transA, cb_transpose transB,
double alpha, _GpuArray *A, _GpuArray *B,
double beta, _GpuArray *C, int nocopy)
int GpuArray_rger(double alpha, _GpuArray *X, _GpuArray *Y, _GpuArray *A,
int nocopy)
int GpuArray_rgemmBatch_3d(
cb_transpose transA, cb_transpose transB, double alpha,
_GpuArray *A, _GpuArray *B, double beta, _GpuArray *C, int nocopy)
cdef api int pygpu_blas_rdot(GpuArray X, GpuArray Y, GpuArray Z, bint nocopy) except -1:
cdef int err
err = GpuArray_rdot(&X.ga, &Y.ga, &Z.ga, nocopy)
if err != GA_NO_ERROR:
raise GpuArrayException(GpuArray_error(&X.ga, err), err)
return 0
cdef api int pygpu_blas_rgemv(cb_transpose transA, double alpha, GpuArray A,
GpuArray X, double beta, GpuArray Y,
bint nocopy) except -1:
cdef int err
err = GpuArray_rgemv(transA, alpha, &A.ga, &X.ga, beta, &Y.ga, nocopy);
if err != GA_NO_ERROR:
raise GpuArrayException(GpuArray_error(&A.ga, err), err)
return 0
cdef api int pygpu_blas_rgemm(cb_transpose transA, cb_transpose transB,
double alpha, GpuArray A, GpuArray B,
double beta, GpuArray C, bint nocopy) except -1:
cdef int err
err = GpuArray_rgemm(transA, transB, alpha, &A.ga, &B.ga, beta, &C.ga, nocopy);
if err != GA_NO_ERROR:
raise GpuArrayException(GpuArray_error(&A.ga, err), err)
return 0
cdef api int pygpu_blas_rger(double alpha, GpuArray X, GpuArray Y, GpuArray A,
bint nocopy) except -1:
cdef int err
err = GpuArray_rger(alpha, &X.ga, &Y.ga, &A.ga, nocopy);
if err != GA_NO_ERROR:
raise GpuArrayException(GpuArray_error(&X.ga, err), err)
return 0
cdef api int pygpu_blas_rgemmBatch_3d(cb_transpose transA, cb_transpose transB,
double alpha, GpuArray A, GpuArray B,
double beta, GpuArray C, bint nocopy) except -1:
cdef int err
err = GpuArray_rgemmBatch_3d(transA, transB,
alpha, &A.ga, &B.ga,
beta, &C.ga, nocopy)
if err != GA_NO_ERROR:
raise GpuArrayException(GpuArray_error(&A.ga, err), err)
return 0
def dot(GpuArray X, GpuArray Y, GpuArray Z=None, overwrite_z=False):
"""dot(X, Y, Z=None, overwrite_z=False)
"""
if Z is None:
Z = pygpu_empty(0, NULL, X.typecode, GA_ANY_ORDER, X.context, None)
overwrite_z = True
if not overwrite_z:
Z = pygpu_copy(Z, GA_ANY_ORDER)
pygpu_blas_rdot(X, Y, Z, 0)
return Z
def gemv(double alpha, GpuArray A, GpuArray X, double beta=0.0,
GpuArray Y=None, trans_a=False, overwrite_y=False):
"""gemv(alpha, A, X, beta=0.0, Y=None, trans_a=False, overwrite_y=False)
"""
cdef cb_transpose transA
cdef size_t Yshp
if trans_a:
transA = cb_trans
else:
transA = cb_no_trans
if A.ga.nd != 2:
raise TypeError("A is not a matrix")
if transA == cb_no_trans:
Yshp = A.ga.dimensions[0]
else:
Yshp = A.ga.dimensions[1]
if Y is None:
if beta != 0.0:
raise ValueError("Y not provided and beta != 0")
Y = pygpu_zeros(1, &Yshp, A.ga.typecode, GA_ANY_ORDER, A.context, None)
overwrite_y = True
if not overwrite_y:
Y = pygpu_copy(Y, GA_ANY_ORDER)
pygpu_blas_rgemv(transA, alpha, A, X, beta, Y, 0)
return Y
def gemm(double alpha, GpuArray A, GpuArray B, double beta, GpuArray C=None,
trans_a=False, trans_b=False, overwrite_c=False):
"""gemm(alpha, A, B, beta, C=None, trans_a=False, trans_b=False, overwrite_c=False)
"""
cdef cb_transpose transA
cdef cb_transpose transB
cdef size_t[2] Cshp
if trans_a:
transA = cb_trans
else:
transA = cb_no_trans
if trans_b:
transB = cb_trans
else:
transB = cb_no_trans
if A.ga.nd != 2:
raise TypeError("A is not a matrix")
if B.ga.nd != 2:
raise TypeError("B is not a matrix")
if transA == cb_no_trans:
Cshp[0] = A.ga.dimensions[0]
else:
Cshp[0] = A.ga.dimensions[1]
if transB == cb_no_trans:
Cshp[1] = B.ga.dimensions[1]
else:
Cshp[1] = B.ga.dimensions[0]
if C is None:
if beta != 0.0:
raise ValueError("C not provided and beta != 0")
C = pygpu_empty(2, Cshp, A.ga.typecode, GA_ANY_ORDER, A.context, None)
overwrite_c = True
if not overwrite_c:
C = pygpu_copy(C, GA_ANY_ORDER)
pygpu_blas_rgemm(transA, transB, alpha, A, B, beta, C, 0)
return C
def ger(double alpha, GpuArray X, GpuArray Y, GpuArray A=None,
overwrite_a=False):
"""ger(alpha, X, Y, A=None, overwrite_a=False)
"""
cdef size_t[2] Ashp
if A is None:
Ashp[0] = X.ga.dimensions[0];
Ashp[1] = Y.ga.dimensions[0];
A = pygpu_zeros(2, Ashp, X.ga.typecode, GA_ANY_ORDER, X.context, None)
overwrite_a = True
if not overwrite_a:
A = pygpu_copy(A, GA_ANY_ORDER)
pygpu_blas_rger(alpha, X, Y, A, 0)
return A
def gemmBatch_3d(double alpha, GpuArray A, GpuArray B,
double beta, GpuArray C=None,
trans_a=False, trans_b=False, overwrite_c=False):
"""gemmBatch_3d(alpha, A, B, beta, C=None, trans_a=False, trans_b=False, overwrite_c=False)
"""
cdef cb_transpose transA
cdef cb_transpose transB
cdef size_t[3] Cshp
if trans_a:
transA = cb_trans
else:
transA = cb_no_trans
if trans_b:
transB = cb_trans
else:
transB = cb_no_trans
if A.ga.nd != 3:
raise TypeError("A is not a batch of matrices")
if B.ga.nd != 3:
raise TypeError("B is not a batch of matrices")
Cshp[0] = A.ga.dimensions[0]
if transA == cb_no_trans:
Cshp[1] = A.ga.dimensions[1]
else:
Cshp[1] = A.ga.dimensions[2]
if transB == cb_no_trans:
Cshp[2] = B.ga.dimensions[2]
else:
Cshp[2] = B.ga.dimensions[1]
if C is None:
if beta != 0.0:
raise ValueError("C not provided and beta != 0")
C = pygpu_empty(3, Cshp, A.ga.typecode, GA_ANY_ORDER, A.context, None)
elif not overwrite_c:
C = pygpu_copy(C, GA_ANY_ORDER)
pygpu_blas_rgemmBatch_3d(transA, transB, alpha, A, B, beta, C, 0)
return C
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