HPL_numrocI HPL 2.2 Library Functions February 24, 2016
HPL_numrocI Compute the local number of row/columns.
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 least one.