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HPL_indxg2p(3)               HPL Library Functions              HPL_indxg2p(3)


NAME

       HPL_indxg2p - Map a global index into a process coordinate.


SYNOPSIS

       #include "hpl.h"

       int HPL_indxg2p( const int IG, const int INB, const int NB, const int
       SRCPROC, const int NPROCS );


DESCRIPTION

       HPL_indxg2p computes the process coordinate  which posseses the entry
       of a matrix specified by a global index IG.


ARGUMENTS

       IG      (input)                 const int
               On entry, IG specifies the global index of the matrix  entry.
               IG must be at least zero.

       INB     (input)                 const int
               On entry,  INB  specifies  the size of the first block of the
               global matrix. INB must be at least one.

       NB      (input)                 const int
               On entry,  NB specifies the blocking factor used to partition
               and distribute the matrix A. NB must be larger than one.

       SRCPROC (input)                 const int
               On entry,  SRCPROC  specifies  the coordinate of the  process
               that possesses the first row or column of the matrix. SRCPROC
               must be at least zero and strictly less than NPROCS.

       NPROCS  (input)                 const int
               On entry,  NPROCS  specifies the total number of process rows
               or columns over which the matrix is distributed.  NPROCS must
               be at least one.


SEE ALSO

       HPL_indxg2l (3), HPL_indxg2p (3), HPL_indxl2g (3), HPL_numroc (3),
       HPL_numrocI (3).

HPL 2.1                        October 26, 2012                 HPL_indxg2p(3)

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