You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
80 lines
3.1 KiB
Fortran
80 lines
3.1 KiB
Fortran
C
|
|
C Parallel Sparse BLAS version 2.2
|
|
C (C) Copyright 2006/2007/2008
|
|
C Salvatore Filippone University of Rome Tor Vergata
|
|
C Alfredo Buttari University of Rome Tor Vergata
|
|
C
|
|
C Redistribution and use in source and binary forms, with or without
|
|
C modification, are permitted provided that the following conditions
|
|
C are met:
|
|
C 1. Redistributions of source code must retain the above copyright
|
|
C notice, this list of conditions and the following disclaimer.
|
|
C 2. Redistributions in binary form must reproduce the above copyright
|
|
C notice, this list of conditions, and the following disclaimer in the
|
|
C documentation and/or other materials provided with the distribution.
|
|
C 3. The name of the PSBLAS group or the names of its contributors may
|
|
C not be used to endorse or promote products derived from this
|
|
C software without specific written permission.
|
|
C
|
|
C THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
C ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
C TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
C PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
|
|
C BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
C CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
C SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
C INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
C CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
C ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
C POSSIBILITY OF SUCH DAMAGE.
|
|
C
|
|
C
|
|
C ... Compute infinity norma for sparse matrix in CSR Format ...
|
|
SUBROUTINE DJADRWS(TRANS,M,N,NG,A,KA,JA,IA,
|
|
+ INFOA,ROWSUM,IERROR)
|
|
use psb_const_mod
|
|
IMPLICIT NONE
|
|
C .. Scalar Arguments ..
|
|
INTEGER M,N, IERROR, NG
|
|
CHARACTER TRANS
|
|
C .. Array Arguments ..
|
|
INTEGER KA(*),JA(*),IA(3,*),INFOA(*)
|
|
real(psb_dpk_) A(*), rowsum(*)
|
|
C ... Local Scalars ..
|
|
real(psb_dpk_) NRMI
|
|
INTEGER I, IR, K, IPG, NPG, IPX
|
|
|
|
NRMI = 0.0
|
|
IR = 0
|
|
DO IPG = 1, NG
|
|
K = IA(2,IPG)
|
|
NPG = JA(K+1)- JA(K)
|
|
|
|
C ... ...
|
|
DO I = 1, NPG
|
|
ROWSUM(IR+I) = 0.0
|
|
ENDDO
|
|
|
|
DO K = IA(2,IPG), IA(3,IPG)-1
|
|
IPX = 1
|
|
DO I = JA(K), JA(K+1) - 1
|
|
ROWSUM(IR+IPX) = ROWSUM(IR+IPX) + ABS(A(I))
|
|
IPX = IPX + 1
|
|
ENDDO
|
|
ENDDO
|
|
|
|
C ... CSR Representation ...
|
|
|
|
IPX = 1
|
|
DO K = IA(3,IPG), IA(2,IPG+1)-1
|
|
DO I = JA(K), JA(K+1) - 1
|
|
ROWSUM(IR+IPX) = ROWSUM(IR+IPX) + ABS(A(I))
|
|
ENDDO
|
|
IPX = IPX + 1
|
|
ENDDO
|
|
|
|
IR = IR + NPG
|
|
ENDDO
|
|
|
|
END
|