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psblas3/base/serial/csr/zcsrrws.f

38 lines
1006 B
Fortran

SUBROUTINE ZCSRRWS(TRANS,M,N,DESCRA,A,IA1,IA2,
& INFOA,ROWSUM,IERROR)
IMPLICIT NONE
C .. Scalar Arguments ..
INTEGER M,N, IERROR
CHARACTER TRANS
C .. Array Arguments ..
INTEGER IA1(*),IA2(*),INFOA(*)
CHARACTER DESCRA*11
COMPLEX*16 A(*), ROWSUM(*)
C .. Local scalars ..
INTEGER I, J
DOUBLE PRECISION SUM
IF (TRANS.EQ.'N') THEN
DO I = 1, M
ROWSUM(I) = (0.0D0, 0.0D0)
DO J = IA2(I), IA2(I + 1) - 1
ROWSUM(I) = ROWSUM(I) +
+ ABS(REAL(A(J))) + ABS(AIMAG(A(J)))
ENDDO
ENDDO
ELSE IF ((TRANS.EQ.'T').OR.(TRANS.EQ.'C')) THEN
DO J = 1, N
ROWSUM(J) = (0.0D0, 0.0D0)
ENDDO
DO I = 1, M
DO J = IA2(I), IA2(I + 1) - 1
ROWSUM(IA1(J)) = ROWSUM(IA1(J)) +
+ ABS(REAL(A(J))) + ABS(AIMAG(A(J)))
ENDDO
ENDDO
ENDIF
END