An html version of this Quick Reference Guide , along with the leading comments from each of the routines, is available via the ScaLAPACK homepage.
http://www.netlib.org/scalapack/index.html
At the lowest level, the efficiency of the PBLAS is determined by the local performance of the BLAS and the BLACS. In addition, depending on the shape of its input and output distributed matrices, the PBLAS select the best algorithm in terms of data transfer across the process grid. Transparent to the user, this relatively simple selection process ensures high efficiency independent of the actual computation performed.
Level 1 PBLAS
dim scalar vector vector P_SWAP ( N, X, IX, JX, DESCX, INCX, Y, IY, JY, DESCY, INCY ) P_SCAL ( N, ALPHA, X, IX, JX, DESCX, INCX ) P_COPY ( N, X, IX, JX, DESCX, INCX, Y, IY, JY, DESCY, INCY ) P_AXPY ( N, ALPHA, X, IX, JX, DESCX, INCX, Y, IY, JY, DESCY, INCY ) P_DOT ( N, DOT, X, IX, JX, DESCX, INCX, Y, IY, JY, DESCY, INCY ) P_DOTU ( N, DOTU, X, IX, JX, DESCX, INCX, Y, IY, JY, DESCY, INCY ) P_DOTC ( N, DOTC, X, IX, JX, DESCX, INCX, Y, IY, JY, DESCY, INCY ) P_NRM2 ( N, NORM2, X, IX, JX, DESCX, INCX ) P_ASUM ( N, ASUM, X, IX, JX, DESCX, INCX ) P_AMAX ( N, AMAX, INDX, X, IX, JX, DESCX, INCX )
Level 2 PBLAS
options dim scalar matrix vector scalar vector
P_GEMV ( TRANS, M, N, ALPHA, A, IA, JA, DESCA, X, IX, JX, DESCX, INCX, BETA, Y, IY, JY, DESCY, INCY )
P_HEMV ( UPLO, N, ALPHA, A, IA, JA, DESCA, X, IX, JX, DESCX, INCX, BETA, Y, IY, JY, DESCY, INCY )
P_SYMV ( UPLO, N, ALPHA, A, IA, JA, DESCA, X, IX, JX, DESCX, INCX, BETA, Y, IY, JY, DESCY, INCY )
P_TRMV ( UPLO, TRANS, DIAG, N, A, IA, JA, DESCA, X, IX, JX, DESCX, INCX )
P_TRSV ( UPLO, TRANS, DIAG, N, A, IA, JA, DESCA, X, IX, JX, DESCX, INCX )
options dim scalar vector vector matrix
P_GER ( M, N, ALPHA, X, IX, JX, DESCX, INCX, Y, IY, JY, DESCY, INCY, A, IA, JA, DESCA )
P_GERU ( M, N, ALPHA, X, IX, JX, DESCX, INCX, Y, IY, JY, DESCY, INCY, A, IA, JA, DESCA )
P_GERC ( M, N, ALPHA, X, IX, JX, DESCX, INCX, Y, IY, JY, DESCY, INCY, A, IA, JA, DESCA )
P_HER ( UPLO, N, ALPHA, X, IX, JX, DESCX, INCX, A, IA, JA, DESCA )
P_HER2 ( UPLO, N, ALPHA, X, IX, JX, DESCX, INCX, Y, IY, JY, DESCY, INCY, A, IA, JA, DESCA )
P_SYR ( UPLO, N, ALPHA, X, IX, JX, DESCX, INCX, A, IA, JA, DESCA )
P_SYR2 ( UPLO, N, ALPHA, X, IX, JX, DESCX, INCX, Y, IY, JY, DESCY, INCY, A, IA, JA, DESCA )
Level 3 PBLAS
options dim scalar matrix matrix scalar matrix P_GEMM ( TRANSA, TRANSB, M, N, K, ALPHA, A, IA, JA, DESCA, B, IB, JB, DESCB, BETA, C, IC, JC, DESCC ) P_SYMM ( SIDE, UPLO, M, N, ALPHA, A, IA, JA, DESCA, B, IB, JB, DESCB, BETA, C, IC, JC, DESCC ) P_HEMM ( SIDE, UPLO, M, N, ALPHA, A, IA, JA, DESCA, B, IB, JB, DESCB, BETA, C, IC, JC, DESCC ) P_SYRK ( UPLO, TRANS, N, K, ALPHA, A, IA, JA, DESCA, BETA, C, IC, JC, DESCC ) P_HERK ( UPLO, TRANS, N, K, ALPHA, A, IA, JA, DESCA, BETA, C, IC, JC, DESCC ) P_SYR2K( UPLO, TRANS, N, K, ALPHA, A, IA, JA, DESCA, B, IB, JB, DESCB, BETA, C, IC, JC, DESCC ) P_HER2K( UPLO, TRANS, N, K, ALPHA, A, IA, JA, DESCA, B, IB, JB, DESCB, BETA, C, IC, JC, DESCC ) P_TRAN ( M, N, ALPHA, A, IA, JA, DESCA, BETA, C, IC, JC, DESCC ) P_TRANU( M, N, ALPHA, A, IA, JA, DESCA, BETA, C, IC, JC, DESCC ) P_TRANC( M, N, ALPHA, A, IA, JA, DESCA, BETA, C, IC, JC, DESCC ) P_TRMM ( SIDE, UPLO, TRANSA, DIAG, M, N, ALPHA, A, IA, JA, DESCA, B, IB, JB, DESCB ) P_TRSM ( SIDE, UPLO, TRANSA, DIAG, M, N, ALPHA, A, IA, JA, DESCA, B, IB, JB, DESCB )
