Developer Reference for Intel® oneAPI Math Kernel Library for Fortran

ID 766686
Date 11/07/2023
Public

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numroc

Computes the number of rows or columns of a distributed matrix owned by the process.

Syntax

val = numroc( n, nb, iproc, srcproc, nprocs )

Description

The numrocroutine computes the number of rows or columns of a distributed matrix owned by the process.

Input Parameters

n

(global input)INTEGER. The number of rows/columns in distributed matrix.

nb

(global input)INTEGER. Block size, size of the blocks the distributed matrix is split into.

iproc

(local input)INTEGER. The coordinate of the process whose local array row or column is to be determined.

srcproc

(global input)INTEGER. The coordinate of the process that possesses the first row or column of the distributed matrix.

nprocs

(global input)INTEGER. The total number processes over which the matrix is distributed.

Output Parameters

info

(output)INTEGER. Value returned by the function.

See Also