INTEGER FUNCTION INDXG2P( INDXGLOB, NB, IPROC, ISRCPROC, NPROCS ) ! ! -- ScaLAPACK tools routine (version 1.5) -- ! University of Tennessee, Knoxville, Oak Ridge National Laboratory, ! and University of California, Berkeley. ! May 1, 1997 ! ! .. Scalar Arguments .. INTEGER INDXGLOB, IPROC, ISRCPROC, NB, NPROCS ! .. ! ! Purpose ! ======= ! ! INDXG2P computes the process coordinate which posseses the entry of a ! distributed matrix specified by a global index INDXGLOB. ! ! Arguments ! ========= ! ! INDXGLOB (global input) INTEGER ! The global index of the element. ! ! NB (global input) INTEGER ! Block size, size of the blocks the distributed matrix is ! split into. ! ! IPROC (local dummy) INTEGER ! Dummy argument in this case in order to unify the calling ! sequence of the tool-routines. ! ! ISRCPROC (global input) INTEGER ! The coordinate of the process that possesses the first ! row/column of the distributed matrix. ! ! NPROCS (global input) INTEGER ! The total number processes over which the matrix is ! distributed. ! ! ===================================================================== ! ! .. Intrinsic Functions .. INTRINSIC MOD ! .. ! .. Executable Statements .. ! INDXG2P = MOD( ISRCPROC + (INDXGLOB - 1) / NB, NPROCS ) ! RETURN ! ! End of INDXG2P ! END