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psblas3/base/serial/coo/zcoosm.f

56 lines
1.6 KiB
Fortran

SUBROUTINE ZCOOSM(TRANST,M,N,UNITD,D,ALPHA,DESCRA,A,IA,JA,INFOA,
* B,LDB,BETA,C,LDC,WORK,LWORK,IERROR)
LOGICAL DEBUG
PARAMETER (DEBUG=.FALSE.)
COMPLEX*16 ALPHA, BETA
INTEGER LDB, LDC, LWORK, M, N, IERROR
CHARACTER UNITD, TRANST
COMPLEX*16 A(*), B(LDB,*), C(LDC,*), D(*), WORK(*)
INTEGER IA(*), JA(*), INFOA(*)
CHARACTER DESCRA*11
INTEGER I, K
CHARACTER DIAG, UPLO
EXTERNAL XERBLA
IF((ALPHA.NE.1.D0) .OR. (BETA.NE.0.D0))then
call xerbla('DCSSM ',9)
RETURN
ENDIF
if (debug) write(*,*) 'ZCOOSM ',m
if (debug) write(*,*) 'ZCOOSM ',m,ierror
UPLO = '?'
IF (DESCRA(1:1).EQ.'T' .AND. DESCRA(2:2).EQ.'U') UPLO = 'U'
IF (DESCRA(1:1).EQ.'T' .AND. DESCRA(2:2).EQ.'L') UPLO = 'L'
IF (UPLO.EQ.'?') THEN
CALL XERBLA('ZCSSM ',10)
RETURN
END IF
IF (DESCRA(3:3).EQ.'N') DIAG = 'N'
IF (DESCRA(3:3).EQ.'U') DIAG = 'U'
IF(UNITD.EQ.'B') THEN
CALL XERBLA('ZCSSM ',11)
RETURN
ENDIF
IF (UNITD.EQ.'R') THEN
DO 40 I = 1, N
DO 20 K = 1, M
B(K,I) = B(K,I)*D(K)
20 CONTINUE
40 CONTINUE
END IF
DO 60 I = 1, N
CALL ZCOOSV(UPLO,TRANST,DIAG,M,A,IA,JA,INFOA,
+ B(1,I),C(1,I),IERROR)
60 CONTINUE
IF (UNITD.EQ.'L') THEN
DO 45 I = 1, N
DO 25 K = 1, M
C(K,I) = C(K,I)*D(K)
25 CONTINUE
45 CONTINUE
END IF
RETURN
END