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HPL_numrocI(3) HPL Library Functions HPL_numrocI(3)
HPL_numrocI - Compute the local number of row/columns.
int HPL_numrocI( const int N, const int I, const int INB, const int NB,
const int PROC, const int SRCPROC, const int NPROCS );
HPL_numrocI returns the local number of matrix rows/columns process
PROC will get if we give out N rows/columns starting from global
N (input) const int
On entry, N specifies the number of rows/columns being dealt
out. N must be at least zero.
I (input) const int
On entry, I specifies the global index of the matrix entry I
must be at least zero.
INB (input) const int
On entry, INB specifies the size of the first block of th
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.
PROC (input) const int
On entry, PROC specifies the coordinate of the process whos
local portion is determined. PROC must be at least zero an
strictly less than NPROCS.
SRCPROC (input) const int
On entry, SRCPROC specifies the coordinate of the proces
that possesses the first row or column of the matrix. SRCPRO
must be at least zero and strictly less than NPROCS.
NPROCS (input) const int
On entry, NPROCS specifies the total number of process row or
columns over which the matrix is distributed. NPROCS mus be at
HPL_indxg2l (3), HPL_indxg2lp (3), HPL_indxg2p (3), HPL_indxl2g (3),
HPL 2.1 October 26, 2012 HPL_numrocI(3)