Developer Reference for Intel® oneAPI Math Kernel Library for Fortran
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
numroc The numroc routine function 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.