p?lamve

Copies all or part of one two-dimensional distributed array to another.

Syntax

void pslamve(char* uplo, MKL_INT* m, MKL_INT* n, float* a, MKL_INT* ia, MKL_INT* ja, MKL_INT* desca, float* b, MKL_INT* ib, MKL_INT* jb, MKL_INT* descb, float* dwork);

void pdlamve(char* uplo, MKL_INT* m, MKL_INT* n, double* a, MKL_INT* ia, MKL_INT* ja, MKL_INT* desca, double* b, MKL_INT* ib, MKL_INT* jb, MKL_INT* descb, double* dwork);

Include Files

  • mkl_scalapack.h

Description

p?lamve copies all or part of a distributed matrix A to another distributed matrix B. There is no alignment assumptions at all except that A and B are of the same size.

Optimization Notice

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804

Input Parameters

uplo

(global )

Specifies the part of the distributed matrix sub( A ) to be copied:

= 'U': Upper triangular part is copied; the strictly lower triangular part of sub( A ) is not referenced;

= 'L': Lower triangular part is copied; the strictly upper triangular part of sub( A ) is not referenced;

Otherwise: All of the matrix sub( A ) is copied.

m

(global )

The number of rows to be operated on, which is the number of rows of the distributed matrix sub( A ). m 0.

n

(global )

The number of columns to be operated on, which is the number of columns of the distributed matrix sub( A ). n 0.

a

(local ) pointer into the local memory to an array of size lld_a * LOCc(ja+n-1) . This array contains the local pieces of the distributed matrix sub( A ) to be copied from.

ia

(global )

The row index in the global matrix A indicating the first row of sub( A ).

ja

(global )

The column index in the global matrix A indicating the first column of sub( A ).

desca

(global and local) array of size dlen_.

The array descriptor for the distributed matrix A.

ib

(global )

The row index in the global matrix B indicating the first row of sub( B ).

jb

(global )

The column index in the global matrix B indicating the first column of sub( B ).

descb

(global and local) array of size dlen_.

The array descriptor for the distributed matrix B.

dwork

(local workspace) array

If uplo = 'U' or uplo = 'L' and number of processors > 1, the length of dwork is at least as large as the length of b.

Otherwise, dwork is not referenced.

OUTPUT Parameters

b

(local ) pointer into the local memory to an array of size lld_b * LOCc(jb+n-1) . This array contains on exit the local pieces of the distributed matrix sub( B ).

See Also

For more complete information about compiler optimizations, see our Optimization Notice.
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