Developer Reference

  • 2021.1
  • 12/04/2020
  • Public Content
Contents

numroc

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

Syntax

MKL_INT
numroc
(
const
MKL_INT
*n
,
const
MKL_INT
*nb
,
const
MKL_INT
*iproc
,
const
MKL_INT
*srcproc
,
const
MKL_INT
*nprocs
);
Description
The
numroc
function
computes the number of rows or columns of a distributed matrix owned by the process.
Input Parameters
n
(global input) The number of rows/columns in distributed matrix.
nb
(global input) Block size, size of the blocks the distributed matrix is split into.
iproc
(local input) The coordinate of the process whose local array row or column is to be determined.
srcproc
(global input) The coordinate of the process that possesses the first row or column of the distributed matrix.
nprocs
(global input) The total number processes over which the matrix is distributed.
Output Parameters
info
(output) Value returned by the function.

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.