dcscsm_c.c

用于求解大型稀疏线性方程组Ax=b的数值计算库.

                break;
             case 3: /* Right scaling */
                CSC_VecTriangSlvUU_CaADBmC_double(m,  dv, alpha, val, indx, pntrb, 
                                     pntre, b, c, work, ind_base);
                break;
             default:
                printf("Invalid argument unitd in dcscsm. Use 1-3. \n");
                break;
             } /* end switch on unitd */
#endif
           } else if (beta == 0) {
             switch (unitd) {
             case 1: /* No scaling */
                CSC_VecTriangSlvUU_CaAB_double(m,  alpha, val, indx, pntrb, pntre, b, 
                                     c, ind_base);
                break;
             case 2: /* Left scaling */
                CSC_VecTriangSlvUU_CaDAB_double(m,  dv, alpha, val, indx, pntrb, 
                                     pntre, b, c, work, ind_base);
                break;
             case 3: /* Right scaling */
                CSC_VecTriangSlvUU_CaADB_double(m,  dv, alpha, val, indx, pntrb, 
                                     pntre, b, c, ind_base);
                break;
             default:
                printf("Invalid argument unitd in dcscsm. Use 1-3. \n");
                break;
             } /* end switch on unitd */
           } else { /*  beta is general nonzero */
             switch (unitd) {
             case 1: /* No scaling */
                CSC_VecTriangSlvUU_CaABbC_double(m,  alpha, val, indx, pntrb, pntre, 
                                     b, beta, c, work, ind_base);
                break;
             case 2: /* Left scaling */
                CSC_VecTriangSlvUU_CaDABbC_double(m,  dv, alpha, val, indx, pntrb, 
                                     pntre, b, beta, c, work, ind_base);
                break;
             case 3: /* Right scaling */
                CSC_VecTriangSlvUU_CaADBbC_double(m,  dv, alpha, val, indx, pntrb, 
                                     pntre, b, beta, c, work, ind_base);
                break;
             default:
                printf("Invalid argument unitd in dcscsm. Use 1-3. \n");
                break;
             } /* end switch on unitd */
           }
         }
         break;
       default: /* Mat Mult */
         if (alpha == 1) {
           if (beta == 1) {
             switch (unitd) {
             case 1: /* No scaling */
                CSC_MatTriangSlvUU_CABC_double(m, n,  val, indx, pntrb, pntre, b, 
                                     ldb, c, ldc, work, ind_base);
                break;
             case 2: /* Left scaling */
                CSC_MatTriangSlvUU_CDABC_double(m, n,  dv, val, indx, pntrb, pntre, 
                                     b, ldb, c, ldc, work, ind_base);
                break;
             case 3: /* Right scaling */
                CSC_MatTriangSlvUU_CADBC_double(m, n,  dv, val, indx, pntrb, pntre, 
                                     b, ldb, c, ldc, work, ind_base);
                break;
             default:
                printf("Invalid argument unitd in dcscsm. Use 1-3. \n");
                break;
             } /* end switch on unitd */
#if (0)
           } else if (beta == -1) {
             switch (unitd) {
             case 1: /* No scaling */
                CSC_MatTriangSlvUU_CABmC_double(m, n,  val, indx, pntrb, pntre, b, 
                                     ldb, c, ldc, work, ind_base);
                break;
             case 2: /* Left scaling */
                CSC_MatTriangSlvUU_CDABmC_double(m, n,  dv, val, indx, pntrb, pntre, 
                                     b, ldb, c, ldc, work, ind_base);
                break;
             case 3: /* Right scaling */
                CSC_MatTriangSlvUU_CADBmC_double(m, n,  dv, val, indx, pntrb, pntre, 
                                     b, ldb, c, ldc, work, ind_base);
                break;
             default:
                printf("Invalid argument unitd in dcscsm. Use 1-3. \n");
                break;
             } /* end switch on unitd */
#endif
           } else if (beta == 0) {
             switch (unitd) {
             case 1: /* No scaling */
                CSC_MatTriangSlvUU_CAB_double(m, n,  val, indx, pntrb, pntre, b, 
                                     ldb, c, ldc, ind_base);
                break;
             case 2: /* Left scaling */
                CSC_MatTriangSlvUU_CDAB_double(m, n,  dv, val, indx, pntrb, pntre, 
                                     b, ldb, c, ldc, work, ind_base);
                break;
             case 3: /* Right scaling */
                CSC_MatTriangSlvUU_CADB_double(m, n,  dv, val, indx, pntrb, pntre, 
                                     b, ldb, c, ldc, ind_base);
                break;
             default:
                printf("Invalid argument unitd in dcscsm. Use 1-3. \n");
                break;
             } /* end switch on unitd */
           } else { /*  beta is general nonzero */
             switch (unitd) {
             case 1: /* No scaling */
                CSC_MatTriangSlvUU_CABbC_double(m, n,  val, indx, pntrb, pntre, b, 
                                     ldb, beta, c, ldc, work, ind_base);
                break;
             case 2: /* Left scaling */
                CSC_MatTriangSlvUU_CDABbC_double(m, n,  dv, val, indx, pntrb, pntre, 
                                     b, ldb, beta, c, ldc, work, ind_base);
                break;
             case 3: /* Right scaling */
                CSC_MatTriangSlvUU_CADBbC_double(m, n,  dv, val, indx, pntrb, pntre, 
                                     b, ldb, beta, c, ldc, work, ind_base);
                break;
             default:
                printf("Invalid argument unitd in dcscsm. Use 1-3. \n");
                break;
             } /* end switch on unitd */
           }
         } else {   /* alpha is general nonzero */
           if (beta == 1) {
             switch (unitd) {
             case 1: /* No scaling */
                CSC_MatTriangSlvUU_CaABC_double(m, n,  alpha, val, indx, pntrb, 
                                     pntre, b, ldb, c, ldc, work, ind_base);
                break;
             case 2: /* Left scaling */
                CSC_MatTriangSlvUU_CaDABC_double(m, n,  dv, alpha, val, indx, 
                                     pntrb, pntre, b, ldb, c, ldc, work, ind_base);
                break;
             case 3: /* Right scaling */
                CSC_MatTriangSlvUU_CaADBC_double(m, n,  dv, alpha, val, indx, 
                                     pntrb, pntre, b, ldb, c, ldc, work, ind_base);
                break;
             default:
                printf("Invalid argument unitd in dcscsm. Use 1-3. \n");
                break;
             } /* end switch on unitd */
#if (0)
           } else if (beta == -1) {
             switch (unitd) {
             case 1: /* No scaling */
                CSC_MatTriangSlvUU_CaABmC_double(m, n,  alpha, val, indx, pntrb, 
                                     pntre, b, ldb, c, ldc, work, ind_base);
                break;
             case 2: /* Left scaling */
                CSC_MatTriangSlvUU_CaDABmC_double(m, n,  dv, alpha, val, indx, 
                                     pntrb, pntre, b, ldb, c, ldc, work, ind_base);
                break;
             case 3: /* Right scaling */
                CSC_MatTriangSlvUU_CaADBmC_double(m, n,  dv, alpha, val, indx, 
                                     pntrb, pntre, b, ldb, c, ldc, work, ind_base);
                break;
             default:
                printf("Invalid argument unitd in dcscsm. Use 1-3. \n");
                break;
             } /* end switch on unitd */
#endif
           } else if (beta == 0) {
             switch (unitd) {
             case 1: /* No scaling */
                CSC_MatTriangSlvUU_CaAB_double(m, n,  alpha, val, indx, pntrb, 
                                     pntre, b, ldb, c, ldc, ind_base);
                break;
             case 2: /* Left scaling */
                CSC_MatTriangSlvUU_CaDAB_double(m, n,  dv, alpha, val, indx, 
                                     pntrb, pntre, b, ldb, c, ldc, work, ind_base);
                break;
             case 3: /* Right scaling */
                CSC_MatTriangSlvUU_CaADB_double(m, n,  dv, alpha, val, indx, 
                                     pntrb, pntre, b, ldb, c, ldc, ind_base);
                break;
             default:
                printf("Invalid argument unitd in dcscsm. Use 1-3. \n");
                break;
             } /* end switch on unitd */
           } else { /*  beta is general nonzero */
             switch (unitd) {
             case 1: /* No scaling */
                CSC_MatTriangSlvUU_CaABbC_double(m, n,  alpha, val, indx, pntrb, 
                                     pntre, b, ldb, beta, c, ldc, work, ind_base);
                break;
             case 2: /* Left scaling */
                CSC_MatTriangSlvUU_CaDABbC_double(m, n,  dv, alpha, val, indx, 
                                     pntrb, pntre, b, ldb, beta, c, ldc, work, ind_base);
                break;
             case 3: /* Right scaling */
                CSC_MatTriangSlvUU_CaADBbC_double(m, n,  dv, alpha, val, indx, 
                                     pntrb, pntre, b, ldb, beta, c, ldc, work, ind_base);
                break;
             default:
                printf("Invalid argument unitd in dcscsm. Use 1-3. \n");
                break;
             } /* end switch on unitd */
           }
         }
         break;
       } /* end switch on n */
       break;
     default: /*  Invalid descra[1] or descra[2] */
       printf("Check values of descra[1] and descra[2] (descra(2) and descra(3) in Fortran.\n");
       printf("Valid values of descra[1] (descra(2)) are 1 and 2.\n");
       printf("Valid values of descra[2] (descra(3)) are 0 and 1.\n");
       break;
     } /* end switch on descra[1] and descra[2] */
     break;
  case 1:
    switch  ( 10*descra[1]+descra[2] ) {
    case 20:  /* Lower triangular, non-unit diagonal */
       switch (n) {
       case 1: /* Vec Mult */
         if (alpha == 1) {
           if (beta == 1) {
             switch (unitd) {
             case 1: /* No scaling */
                CSR_VecTriangSlvLD_CABC_double(m,  val, indx, pntrb, pntre, b, 
                                     c, work, ind_base);
                break;
             case 2: /* Left scaling */
                CSR_VecTriangSlvLD_CDABC_double(m,  dv, val, indx, pntrb, pntre, b, 
                                     c, work, ind_base);
                break;
             case 3: /* Right scaling */
                CSR_VecTriangSlvLD_CADBC_double(m,  dv, val, indx, pntrb, pntre, b, 
                                     c, work, ind_base);
                break;
             default:
                printf("Invalid argument unitd in dcscsm. Use 1-3. \n");
                break;
             } /* end switch on unitd */
#if (0)
           } else if (beta == -1) {
             switch (unitd) {
             case 1: /* No scaling */
                CSR_VecTriangSlvLD_CABmC_double(m,  val, indx, pntrb, pntre, b, 
                                     c, work, ind_base);
                break;
             case 2: /* Left scaling */
                CSR_VecTriangSlvLD_CDABmC_double(m,  dv, val, indx, pntrb, pntre, b, 
                                     c, work, ind_base);
                break;
             case 3: /* Right scaling */
                CSR_VecTriangSlvLD_CADBmC_double(m,  dv, val, indx, pntrb, pntre, b, 
                                     c, work, ind_base);
                break;
             default:
                printf("Invalid argument unitd in dcscsm. Use 1-3. \n");
                break;
             } /* end switch on unitd */
#endif
           } else if (beta == 0) {
             switch (unitd) {
             case 1: /* No scaling */
                CSR_VecTriangSlvLD_CAB_double(m,  val, indx, pntrb, pntre, b, 
                                     c, ind_base);
                break;
             case 2: /* Left scaling */
                CSR_VecTriangSlvLD_CDAB_double(m,  dv, val, indx, pntrb, pntre, b, 
                                     c, work, ind_base);
                break;
             case 3: /* Right scaling */
                CSR_VecTriangSlvLD_CADB_double(m,  dv, val, indx, pntrb, pntre, b, 
                                     c, ind_base);
                break;
             default:
                printf("Invalid argument unitd in dcscsm. Use 1-3. \n");
                break;
             } /* end switch on unitd */
           } else  { /*  beta is general nonzero */
             switch (unitd) {
             case 1: /* No scaling */
                CSR_VecTriangSlvLD_CABbC_double(m,  val, indx, pntrb, pntre, b, 
                                     beta, c, work, ind_base);
                break;
             case 2: /* Left scaling */
                CSR_VecTriangSlvLD_CDABbC_double(m,  dv, val, indx, pntrb, pntre, b, 
                                     beta, c, work, ind_base);
                break;
             case 3: /* Right scaling */
                CSR_VecTriangSlvLD_CADBbC_double(m,  dv, val, indx, pntrb, pntre, b, 
                                     beta, c, work, ind_base);
                break;
             default:
                printf("Inval