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BStri_solve(3)                   BlockSolve95                   BStri_solve(3)

NAME
       BStri_solve - Multiply the matrix A(-1) by a block of vectors

INPUT PARAMETERS
       A      - a sparse matrix
       fact_A - a possibly incompletely factored version of A
       comm_A - the communication structure for A (fact_A)
       vec    - the block of vectors to multiply by
       pre_option
              - the preconditioner to select PRE_ICC: incomplete Cholesky
              factorization PRE_ILU: incomplete LU factorization PRE_SSOR:
              Successive over relaxation PRE_BJACOBI: Block Jacobi
       BS     - the number of vectors in vec
       procinfo
              - the usual processor stuff

OUTPUT PARAMETERS
       vec    - the resulting block of vectors

RETURNS
       void

NOTES
       Different code is used to multiply a single vector than is used to
       multiply a block of vectors (this improves efficiency).

SYNOPSIS
       void BStri_solve(BSpar_mat *A, BSpar_mat *fact_A, BScomm *comm_A, FLOAT *vec,
         int pre_option, int BS, BSprocinfo *procinfo)

LOCATION
        BlockSolve95/src/BStri_solve.c

                                  12/25/1995                    BStri_solve(3)