dcoomm - matrix multiply
SUBROUTINE DCOOMM( TRANSA, M, N, K, ALPHA, DESCRA, * VAL, INDX, JNDX, NNZ, * B, LDB, BETA, C, LDC, WORK, LWORK) INTEGER TRANSA, M, N, K, DESCRA(5), NNZ * LDB, LDC, LWORK INTEGER INDX(NNZ), JNDX(NNZ) DOUBLE PRECISION ALPHA, BETA DOUBLE PRECISION VAL(NNZ), B(LDB,*), C(LDC,*), WORK(LWORK) SUBROUTINE DCOOMM_64( TRANSA, M, N, K, ALPHA, DESCRA, * VAL, INDX, JNDX, NNZ, * B, LDB, BETA, C, LDC, WORK, LWORK) INTEGER*8 TRANSA, M, N, K, DESCRA(5), NNZ * LDB, LDC, LWORK INTEGER*8 INDX(NNZ), JNDX(NNZ) DOUBLE PRECISION ALPHA, BETA DOUBLE PRECISION VAL(NNZ), B(LDB,*), C(LDC,*), WORK(LWORK) F95 INTERFACE SUBROUTINE COOMM( TRANSA, M, N, K, ALPHA, DESCRA, * VAL, INDX, JNDX, NNZ, B, LDB, BETA, C, LDC, * WORK, LWORK ) INTEGER TRANSA, M, K, NNZ INTEGER, DIMENSION(:) :: DESCRA, INDX, JNDX DOUBLE PRECISION ALPHA, BETA DOUBLE PRECISION, DIMENSION(:) :: VAL DOUBLE PRECISION, DIMENSION(:, :) :: B, C SUBROUTINE COOMM_64( TRANSA, M, N, K, ALPHA, DESCRA, * VAL, INDX, JNDX, NNZ, B, LDB, BETA, C, LDC, * WORK, LWORK ) INTEGER*8 TRANSA, M, K, NNZ INTEGER*8, DIMENSION(:) :: DESCRA, INDX, JNDX DOUBLE PRECISION ALPHA, BETA DOUBLE PRECISION, DIMENSION(:) :: VAL DOUBLE PRECISION, DIMENSION(:, :) :: B, C C INTERFACE #include <sunperf.h> void dcoomm (const int transa, const int m, const int n, const int k, const double alpha, const int* descra, const double* val, const int* indx, const int* jndx, const int nnz, const dou- ble* b, const int ldb, const double beta, double* c, const int ldc); void dcoomm_64 (const long transa, const long m, const long n, const long k, const double alpha, const long* descra, const double* val, const long* indx, const long* jndx, const long nnz, const double* b, const long ldb, const double beta, double* c, const long ldc);
Oracle Solaris Studio Performance Library dcoomm(3P) NAME dcoomm - coordinate matrix-matrix multiply SYNOPSIS SUBROUTINE DCOOMM( TRANSA, M, N, K, ALPHA, DESCRA, * VAL, INDX, JNDX, NNZ, * B, LDB, BETA, C, LDC, WORK, LWORK) INTEGER TRANSA, M, N, K, DESCRA(5), NNZ * LDB, LDC, LWORK INTEGER INDX(NNZ), JNDX(NNZ) DOUBLE PRECISION ALPHA, BETA DOUBLE PRECISION VAL(NNZ), B(LDB,*), C(LDC,*), WORK(LWORK) SUBROUTINE DCOOMM_64( TRANSA, M, N, K, ALPHA, DESCRA, * VAL, INDX, JNDX, NNZ, * B, LDB, BETA, C, LDC, WORK, LWORK) INTEGER*8 TRANSA, M, N, K, DESCRA(5), NNZ * LDB, LDC, LWORK INTEGER*8 INDX(NNZ), JNDX(NNZ) DOUBLE PRECISION ALPHA, BETA DOUBLE PRECISION VAL(NNZ), B(LDB,*), C(LDC,*), WORK(LWORK) F95 INTERFACE SUBROUTINE COOMM( TRANSA, M, N, K, ALPHA, DESCRA, * VAL, INDX, JNDX, NNZ, B, LDB, BETA, C, LDC, * WORK, LWORK ) INTEGER TRANSA, M, K, NNZ INTEGER, DIMENSION(:) :: DESCRA, INDX, JNDX DOUBLE PRECISION ALPHA, BETA DOUBLE PRECISION, DIMENSION(:) :: VAL DOUBLE PRECISION, DIMENSION(:, :) :: B, C SUBROUTINE COOMM_64( TRANSA, M, N, K, ALPHA, DESCRA, * VAL, INDX, JNDX, NNZ, B, LDB, BETA, C, LDC, * WORK, LWORK ) INTEGER*8 TRANSA, M, K, NNZ INTEGER*8, DIMENSION(:) :: DESCRA, INDX, JNDX DOUBLE PRECISION ALPHA, BETA DOUBLE PRECISION, DIMENSION(:) :: VAL DOUBLE PRECISION, DIMENSION(:, :) :: B, C C INTERFACE #include <sunperf.h> void dcoomm (const int transa, const int m, const int n, const int k, const double alpha, const int* descra, const double* val, const int* indx, const int* jndx, const int nnz, const dou- ble* b, const int ldb, const double beta, double* c, const int ldc); void dcoomm_64 (const long transa, const long m, const long n, const long k, const double alpha, const long* descra, const double* val, const long* indx, const long* jndx, const long nnz, const double* b, const long ldb, const double beta, double* c, const long ldc); DESCRIPTION dcoomm performs one of the matrix-matrix operations C <- alpha op(A) B + beta C where op( A ) is one of op( A ) = A or op( A ) = A' or op( A ) = conjg( A' ) ( ' indicates matrix transpose), A is an M-by-K sparse matrix represented in the coordinate format, alpha and beta are scalars, C and B are dense matrices. ARGUMENTS TRANSA(input) On entry, integer TRANSA specifies the form of op( A ) to be used in the matrix multiplication as follows: 0 : operate with matrix 1 : operate with transpose matrix 2 : operate with the conjugate transpose of matrix. 2 is equivalent to 1 if matrix is real. Unchanged on exit. M(input) On entry, integer M specifies the number of rows in the matrix A. Unchanged on exit. N(input) On entry, integer N specifies the number of columns in the matrix C. Unchanged on exit. K(input) On entry, integer K specifies the number of columns in the matrix A. Unchanged on exit. ALPHA(input) On entry, ALPHA specifies the scalar alpha. Unchanged on exit. DESCRA (input) Descriptor argument. Five element integer array. DESCRA(1) matrix structure 0 : general 1 : symmetric (A=A') 2 : Hermitian (A= CONJG(A')) 3 : Triangular 4 : Skew(Anti)-Symmetric (A=-A') 5 : Diagonal 6 : Skew-Hermitian (A= -CONJG(A')) DESCRA(2) upper/lower triangular indicator 1 : lower 2 : upper DESCRA(3) main diagonal type 0 : non-unit 1 : unit DESCRA(4) Array base (NOT IMPLEMENTED) 0 : C/C++ compatible 1 : Fortran compatible DESCRA(5) repeated indices? (NOT IMPLEMENTED) 0 : unknown 1 : no repeated indices VAL (input) On entry, VAL is a scalar array array of length NNZ consisting of the non-zero entries of A, in any order. Unchanged on exit. INDX (input) On entry, INDX is an integer array of length NNZ consisting of the corresponding row indices of the entries of A. Unchanged on exit. JNDX (input) On entry, JNDX is an integer array of length NNZ consisting of the corresponding column indices of the entries of A. Unchanged on exit. NNZ (input) On entry, integer NNZ specifies the number of non-zero elements in A. Unchanged on exit. B (input) Array of DIMENSION ( LDB, N ). Before entry with TRANSA = 0, the leading k by n part of the array B must contain the matrix B, otherwise the leading m by n part of the array B must contain the matrix B. Unchanged on exit. LDB (input) On entry, LDB specifies the first dimension of B as declared in the calling (sub) program. Unchanged on exit. BETA (input) On entry, BETA specifies the scalar beta. Unchanged on exit. C(input/output) Array of DIMENSION ( LDC, N ). Before entry with TRANSA = 0, the leading m by n part of the array C must contain the matrix C, otherwise the leading k by n part of the array C must contain the matrix C. On exit, the array C is overwritten by the matrix ( alpha*op( A )* B + beta*C ). LDC (input) On entry, LDC specifies the first dimension of C as declared in the calling (sub) program. Unchanged on exit. WORK (is not referenced in the current version) LWORK (is not referenced in the current version) SEE ALSO Libsunperf SPARSE BLAS is fully parallel and compatible with NIST FOR- TRAN Sparse Blas but the sources are different. Libsunperf SPARSE BLAS is free of bugs found in NIST FORTRAN Sparse Blas. Besides several new features and routines are implemented. NIST FORTRAN Sparse Blas User's Guide available at: http://math.nist.gov/mcsd/Staff/KRemington/fspblas/ Based on the standard proposed in "Document for the Basic Linear Algebra Subprograms (BLAS) Standard", University of Tennessee, Knoxville, Tennessee, 1996: http://www.netlib.org/utk/papers/sparse.ps The routine is designed so that it provides a possibility to use just one sparse matrix representation of a general matrix A for computing matrix-matrix multiply for another sparse matrix composed by trian- gles and/or the main diagonal of A. The full description of the feature for point entry formats is given in section NOTES/BUGS for the scoomm manpage. 3rd Berkeley Distribution 7 Nov 2015 dcoomm(3P)