INTEGER FUNCTION INDXG2P( INDXGLOB, NB, IPROC, ISRCPROC, NPROCS ) * * -- ScaLAPACK tools routine (version 1.7) -- * 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