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SUBROUTINE PBSDZRO1( M, N, NZ, A, LDA, MINT, NINT, NEN )
*
* -- PB-BLAS routine (version 2.1) --
* University of Tennessee, Knoxville, Oak Ridge National Laboratory.
* April 28, 1996
*
* .. Scalar Arguments ..
INTEGER LDA, M, MINT, N, NINT, NEN, NZ
* ..
* .. Array Arguments ..
REAL A( LDA, * )
* ..
*
* Purpose
* =======
*
* PBSDZRO1 selects diagonal elements and makes them ZERO.
*
* =====================================================================
*
* .. Parameters ..
REAL ZERO
PARAMETER ( ZERO = 0.0E+0 )
* ..
* .. Local Scalars ..
INTEGER I, J, JP, MN
* ..
* .. External Functions ..
INTEGER ICEIL
EXTERNAL ICEIL
* ..
* .. Intrinsic Functions ..
INTRINSIC MIN
* ..
* .. Executable Statements ..
*
JP = 0
MN = M
*
DO 10 J = 1, N-NZ
A( MN+J, JP+J ) = ZERO
10 CONTINUE
MN = MN + MINT - NZ
JP = JP + NINT - NZ
*
DO 30 I = 2, ICEIL( NEN+NZ, NINT )
DO 20 J = 1, MIN( N, NEN-JP )
A( MN+J, JP+J ) = ZERO
20 CONTINUE
MN = MN + MINT
JP = JP + NINT
30 CONTINUE
*
RETURN
*
* End of PBSDZRO1
*
END
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