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HPL_indxg2lp(3)		     HPL Library Functions	       HPL_indxg2lp(3)

       HPL_indxg2lp - Map a local index	into a global one.

       #include	"hpl.h"

       void  HPL_indxg2lp(  int	* IL, int * PROC, const	int IG,	const int INB,
       const int NB, const int SRCPROC,	const int NPROCS );

       HPL_indxg2lp computes the local index of	a matrix entry pointed	to  by
       the  global   index IG as well as the process coordinate	which posseses
       this entry. The local returned index is the same	in all processes.

       IL      (output)		       int *
	       On exit,	IL specifies the local index corresponding to  IG.  IL
	       is at least zero.

       PROC    (output)		       int *
	       On  exit,   PROC	 is the	 coordinate of the process  owning the
	       entry specified by the global index IG. PROC is at  least  zero
	       and less	than NPROCS.

       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, if SRCPROC = -1, the data  is not   distributed   but
	       replicated,   in	  which	 case  this  routine returns IG	in all
	       processes. Otherwise, the value of SRCPROC is ignored.

       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.

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

HPL 2.3			       December	2, 2018		       HPL_indxg2lp(3)


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