GCC Code Coverage Report

Directory:	./
File:	src/svd/tests/test15.c
Date:	2025-10-04 04:19:13

	Exec	Total	Coverage
Lines:	72	72	100.0%
Functions:	1	1	100.0%
Branches:	241	372	64.8%

  
      Line
      Branch
      Exec
      Source
    
      /*
    
         - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
         SLEPc - Scalable Library for Eigenvalue Problem Computations
    
         Copyright (c) 2002-, Universitat Politecnica de Valencia, Spain
    
         This file is part of SLEPc.
    
         SLEPc is distributed under a 2-clause BSD license (see LICENSE).
    
         - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
      */
    
      static char help[] = "Tests user interface for TRLANCZOS with GSVD.\n\n"
    
        "The command line options are:\n"
    
        "  -m <m>, where <m> = number of rows of A.\n"
    
        "  -n <n>, where <n> = number of columns of A.\n"
    
        "  -p <p>, where <p> = number of rows of B.\n"
    
        "  -s <s>, where <s> = scale parameter.\n\n";
    
      #include <slepcsvd.h>
    
      60
      int main(int argc,char **argv)
    
      {
    
      60
        Mat                 A,B;
    
      60
        SVD                 svd;
    
      60
        KSP                 ksp;
    
      60
        PC                  pc;
    
      60
        PetscInt            m=15,n=20,p=21,i,j,d,Istart,Iend;
    
      60
        PetscReal           keep,scale=1.0;
    
      60
        PetscBool           flg,lock,oneside;
    
      60
        SVDTRLanczosGBidiag bidiag;
    
        1/2✓ Branch 0 taken 2 times.
✗ Branch 1 not taken.

      60
        PetscFunctionBeginUser;
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(SlepcInitialize(&argc,&argv,NULL,help));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(PetscOptionsGetInt(NULL,NULL,"-m",&m,NULL));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(PetscOptionsGetInt(NULL,NULL,"-p",&p,NULL));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(PetscOptionsGetReal(NULL,NULL,"-s",&scale,NULL));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(PetscPrintf(PETSC_COMM_WORLD,"\nGeneralized singular value decomposition, (%" PetscInt_FMT "+%" PetscInt_FMT ")x%" PetscInt_FMT "\n\n",m,p,n));
    
        /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
                           Generate the matrices
    
           - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(MatCreate(PETSC_COMM_WORLD,&A));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(MatSetSizes(A,PETSC_DECIDE,PETSC_DECIDE,m,n));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(MatSetFromOptions(A));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(MatGetOwnershipRange(A,&Istart,&Iend));
    
        2/2✓ Branch 0 taken 10 times.
✓ Branch 1 taken 10 times.

      870
        for (i=Istart;i<Iend;i++) {
    
        7/10✓ Branch 0 taken 10 times.
✓ Branch 1 taken 10 times.
✓ Branch 2 taken 10 times.
✗ Branch 3 not taken.
✓ Branch 4 taken 2 times.
✓ Branch 5 taken 8 times.
✓ Branch 6 taken 2 times.
✗ Branch 7 not taken.
✗ Branch 8 not taken.
✓ Branch 9 taken 2 times.

      810
          if (i>0 && i-1<n) PetscCall(MatSetValue(A,i,i-1,-1.0,INSERT_VALUES));
    
        5/8✓ Branch 0 taken 10 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 2 times.
✓ Branch 3 taken 8 times.
✓ Branch 4 taken 2 times.
✗ Branch 5 not taken.
✗ Branch 6 not taken.
✓ Branch 7 taken 2 times.

      810
          if (i+1<n) PetscCall(MatSetValue(A,i,i+1,-1.0,INSERT_VALUES));
    
        5/8✓ Branch 0 taken 10 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 2 times.
✓ Branch 3 taken 8 times.
✓ Branch 4 taken 2 times.
✗ Branch 5 not taken.
✗ Branch 6 not taken.
✓ Branch 7 taken 2 times.

      810
          if (i<n) PetscCall(MatSetValue(A,i,i,2.0,INSERT_VALUES));
    
        1/8✗ Branch 0 not taken.
✓ Branch 1 taken 10 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
✗ Branch 6 not taken.
✗ Branch 7 not taken.

      810
          if (i>n) PetscCall(MatSetValue(A,i,n-1,1.0,INSERT_VALUES));
    
        }
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(MatCreate(PETSC_COMM_WORLD,&B));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(MatSetSizes(B,PETSC_DECIDE,PETSC_DECIDE,p,n));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(MatSetFromOptions(B));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(MatGetOwnershipRange(B,&Istart,&Iend));
    
      60
        d = PetscMax(0,n-p);
    
        2/2✓ Branch 0 taken 10 times.
✓ Branch 1 taken 10 times.

      1230
        for (i=Istart;i<Iend;i++) {
    
        7/8✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 10 times.
✓ Branch 3 taken 8 times.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.
✓ Branch 6 taken 2 times.
✓ Branch 7 taken 2 times.

      13450
          for (j=0;j<=PetscMin(i,n-1);j++) PetscCall(MatSetValue(B,i,j+d,1.0,INSERT_VALUES));
    
        }
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(MatAssemblyBegin(B,MAT_FINAL_ASSEMBLY));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(MatAssemblyEnd(B,MAT_FINAL_ASSEMBLY));
    
        /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    
               Create the singular value solver, set options and solve
    
           - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(SVDCreate(PETSC_COMM_WORLD,&svd));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(SVDSetOperators(svd,A,B));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(SVDSetProblemType(svd,SVD_GENERALIZED));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(SVDSetDimensions(svd,4,PETSC_DETERMINE,PETSC_DETERMINE));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(SVDSetConvergenceTest(svd,SVD_CONV_NORM));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(SVDSetType(svd,SVDTRLANCZOS));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(SVDTRLanczosSetGBidiag(svd,SVD_TRLANCZOS_GBIDIAG_UPPER));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(SVDTRLanczosSetScale(svd,scale));
    
        /* create a standalone KSP with appropriate settings */
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(KSPCreate(PETSC_COMM_WORLD,&ksp));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(KSPSetType(ksp,KSPLSQR));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(KSPGetPC(ksp,&pc));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(PCSetType(pc,PCNONE));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(KSPSetTolerances(ksp,PETSC_SMALL,PETSC_CURRENT,PETSC_CURRENT,PETSC_CURRENT));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(KSPSetFromOptions(ksp));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(SVDTRLanczosSetKSP(svd,ksp));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(SVDTRLanczosSetRestart(svd,0.4));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(SVDTRLanczosSetLocking(svd,PETSC_TRUE));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(SVDSetFromOptions(svd));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(PetscObjectTypeCompare((PetscObject)svd,SVDTRLANCZOS,&flg));
    
        1/2✓ Branch 0 taken 10 times.
✗ Branch 1 not taken.

      60
        if (flg) {
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
          PetscCall(SVDTRLanczosGetGBidiag(svd,&bidiag));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
          PetscCall(PetscPrintf(PETSC_COMM_WORLD,"TRLANCZOS: using %s bidiagonalization\n",SVDTRLanczosGBidiags[bidiag]));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
          PetscCall(SVDTRLanczosGetRestart(svd,&keep));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
          PetscCall(SVDTRLanczosGetLocking(svd,&lock));
    
        6/8✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✓ Branch 3 taken 8 times.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.
✗ Branch 6 not taken.
✓ Branch 7 taken 2 times.

      60
          PetscCall(PetscPrintf(PETSC_COMM_WORLD,"TRLANCZOS: restarting parameter %.2f %s\n",(double)keep,lock?"(locking)":""));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
          PetscCall(SVDTRLanczosGetScale(svd,&scale));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
          PetscCall(PetscPrintf(PETSC_COMM_WORLD,"TRLANCZOS: scale parameter %g\n",(double)scale));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
          PetscCall(SVDTRLanczosGetOneSide(svd,&oneside));
    
        1/8✗ Branch 0 not taken.
✓ Branch 1 taken 10 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
✗ Branch 6 not taken.
✗ Branch 7 not taken.

      60
          if (oneside) PetscCall(PetscPrintf(PETSC_COMM_WORLD,"TRLANCZOS: using one-sided orthogonalization\n"));
    
        }
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(SVDSolve(svd));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(SVDErrorView(svd,SVD_ERROR_NORM,NULL));
    
        /* Free work space */
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(SVDDestroy(&svd));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(KSPDestroy(&ksp));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(MatDestroy(&A));
    
        4/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 8 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 2 times.

      60
        PetscCall(MatDestroy(&B));
    
        3/6✓ Branch 0 taken 2 times.
✓ Branch 1 taken 2 times.
✓ Branch 2 taken 2 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✗ Branch 5 not taken.

      60
        PetscCall(SlepcFinalize());
    
        return 0;
    
      }
    
      /*TEST
    
         test:
    
            suffix: 1
    
            args: -svd_trlanczos_gbidiag {{single upper lower}}
    
            filter: grep -v "TRLANCZOS: using"
    
            requires: !single
    
         test:
    
            suffix: 2
    
            args: -m 6 -n 12 -p 12 -svd_trlanczos_restart .7
    
            requires: !single
    
         test:
    
            suffix: 3
    
            args: -s 8 -svd_trlanczos_gbidiag lower
    
            requires: !single
    
         test:
    
            suffix: 4
    
            args: -s -5 -svd_trlanczos_gbidiag lower
    
            requires: !single
    
      TEST*/

Line	Branch	Exec	Source
1			/*
2			- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
3			SLEPc - Scalable Library for Eigenvalue Problem Computations
4			Copyright (c) 2002-, Universitat Politecnica de Valencia, Spain
5
6			This file is part of SLEPc.
7			SLEPc is distributed under a 2-clause BSD license (see LICENSE).
8			- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
9			*/
10
11			static char help[] = "Tests user interface for TRLANCZOS with GSVD.\n\n"
12			"The command line options are:\n"
13			" -m <m>, where <m> = number of rows of A.\n"
14			" -n <n>, where <n> = number of columns of A.\n"
15			" -p <p>, where <p> = number of rows of B.\n"
16			" -s <s>, where <s> = scale parameter.\n\n";
17
18			#include <slepcsvd.h>
19
20		60	int main(int argc,char **argv)
21			{
22		60	Mat A,B;
23		60	SVD svd;
24		60	KSP ksp;
25		60	PC pc;
26		60	PetscInt m=15,n=20,p=21,i,j,d,Istart,Iend;
27		60	PetscReal keep,scale=1.0;
28		60	PetscBool flg,lock,oneside;
29		60	SVDTRLanczosGBidiag bidiag;
30
31	1/2 ✓ Branch 0 taken 2 times. ✗ Branch 1 not taken.	60	PetscFunctionBeginUser;
32	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(SlepcInitialize(&argc,&argv,NULL,help));
33	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(PetscOptionsGetInt(NULL,NULL,"-m",&m,NULL));
34	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL));
35	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(PetscOptionsGetInt(NULL,NULL,"-p",&p,NULL));
36	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(PetscOptionsGetReal(NULL,NULL,"-s",&scale,NULL));
37	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(PetscPrintf(PETSC_COMM_WORLD,"\nGeneralized singular value decomposition, (%" PetscInt_FMT "+%" PetscInt_FMT ")x%" PetscInt_FMT "\n\n",m,p,n));
38
39			/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
40			Generate the matrices
41			- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
42
43	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(MatCreate(PETSC_COMM_WORLD,&A));
44	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(MatSetSizes(A,PETSC_DECIDE,PETSC_DECIDE,m,n));
45	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(MatSetFromOptions(A));
46
47	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(MatGetOwnershipRange(A,&Istart,&Iend));
48	2/2 ✓ Branch 0 taken 10 times. ✓ Branch 1 taken 10 times.	870	for (i=Istart;i<Iend;i++) {
49	7/10 ✓ Branch 0 taken 10 times. ✓ Branch 1 taken 10 times. ✓ Branch 2 taken 10 times. ✗ Branch 3 not taken. ✓ Branch 4 taken 2 times. ✓ Branch 5 taken 8 times. ✓ Branch 6 taken 2 times. ✗ Branch 7 not taken. ✗ Branch 8 not taken. ✓ Branch 9 taken 2 times.	810	if (i>0 && i-1<n) PetscCall(MatSetValue(A,i,i-1,-1.0,INSERT_VALUES));
50	5/8 ✓ Branch 0 taken 10 times. ✗ Branch 1 not taken. ✓ Branch 2 taken 2 times. ✓ Branch 3 taken 8 times. ✓ Branch 4 taken 2 times. ✗ Branch 5 not taken. ✗ Branch 6 not taken. ✓ Branch 7 taken 2 times.	810	if (i+1<n) PetscCall(MatSetValue(A,i,i+1,-1.0,INSERT_VALUES));
51	5/8 ✓ Branch 0 taken 10 times. ✗ Branch 1 not taken. ✓ Branch 2 taken 2 times. ✓ Branch 3 taken 8 times. ✓ Branch 4 taken 2 times. ✗ Branch 5 not taken. ✗ Branch 6 not taken. ✓ Branch 7 taken 2 times.	810	if (i<n) PetscCall(MatSetValue(A,i,i,2.0,INSERT_VALUES));
52	1/8 ✗ Branch 0 not taken. ✓ Branch 1 taken 10 times. ✗ Branch 2 not taken. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✗ Branch 5 not taken. ✗ Branch 6 not taken. ✗ Branch 7 not taken.	810	if (i>n) PetscCall(MatSetValue(A,i,n-1,1.0,INSERT_VALUES));
53			}
54	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY));
55	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY));
56
57	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(MatCreate(PETSC_COMM_WORLD,&B));
58	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(MatSetSizes(B,PETSC_DECIDE,PETSC_DECIDE,p,n));
59	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(MatSetFromOptions(B));
60
61	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(MatGetOwnershipRange(B,&Istart,&Iend));
62		60	d = PetscMax(0,n-p);
63	2/2 ✓ Branch 0 taken 10 times. ✓ Branch 1 taken 10 times.	1230	for (i=Istart;i<Iend;i++) {
64	7/8 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 10 times. ✓ Branch 3 taken 8 times. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times. ✓ Branch 6 taken 2 times. ✓ Branch 7 taken 2 times.	13450	for (j=0;j<=PetscMin(i,n-1);j++) PetscCall(MatSetValue(B,i,j+d,1.0,INSERT_VALUES));
65			}
66	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(MatAssemblyBegin(B,MAT_FINAL_ASSEMBLY));
67	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(MatAssemblyEnd(B,MAT_FINAL_ASSEMBLY));
68
69			/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
70			Create the singular value solver, set options and solve
71			- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
72
73	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(SVDCreate(PETSC_COMM_WORLD,&svd));
74	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(SVDSetOperators(svd,A,B));
75	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(SVDSetProblemType(svd,SVD_GENERALIZED));
76	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(SVDSetDimensions(svd,4,PETSC_DETERMINE,PETSC_DETERMINE));
77	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(SVDSetConvergenceTest(svd,SVD_CONV_NORM));
78
79	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(SVDSetType(svd,SVDTRLANCZOS));
80	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(SVDTRLanczosSetGBidiag(svd,SVD_TRLANCZOS_GBIDIAG_UPPER));
81	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(SVDTRLanczosSetScale(svd,scale));
82
83			/* create a standalone KSP with appropriate settings */
84	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(KSPCreate(PETSC_COMM_WORLD,&ksp));
85	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(KSPSetType(ksp,KSPLSQR));
86	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(KSPGetPC(ksp,&pc));
87	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(PCSetType(pc,PCNONE));
88	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(KSPSetTolerances(ksp,PETSC_SMALL,PETSC_CURRENT,PETSC_CURRENT,PETSC_CURRENT));
89	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(KSPSetFromOptions(ksp));
90	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(SVDTRLanczosSetKSP(svd,ksp));
91	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(SVDTRLanczosSetRestart(svd,0.4));
92	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(SVDTRLanczosSetLocking(svd,PETSC_TRUE));
93
94	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(SVDSetFromOptions(svd));
95
96	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(PetscObjectTypeCompare((PetscObject)svd,SVDTRLANCZOS,&flg));
97	1/2 ✓ Branch 0 taken 10 times. ✗ Branch 1 not taken.	60	if (flg) {
98	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(SVDTRLanczosGetGBidiag(svd,&bidiag));
99	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(PetscPrintf(PETSC_COMM_WORLD,"TRLANCZOS: using %s bidiagonalization\n",SVDTRLanczosGBidiags[bidiag]));
100	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(SVDTRLanczosGetRestart(svd,&keep));
101	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(SVDTRLanczosGetLocking(svd,&lock));
102	6/8 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✓ Branch 3 taken 8 times. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times. ✗ Branch 6 not taken. ✓ Branch 7 taken 2 times.	60	PetscCall(PetscPrintf(PETSC_COMM_WORLD,"TRLANCZOS: restarting parameter %.2f %s\n",(double)keep,lock?"(locking)":""));
103	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(SVDTRLanczosGetScale(svd,&scale));
104	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(PetscPrintf(PETSC_COMM_WORLD,"TRLANCZOS: scale parameter %g\n",(double)scale));
105	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(SVDTRLanczosGetOneSide(svd,&oneside));
106	1/8 ✗ Branch 0 not taken. ✓ Branch 1 taken 10 times. ✗ Branch 2 not taken. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✗ Branch 5 not taken. ✗ Branch 6 not taken. ✗ Branch 7 not taken.	60	if (oneside) PetscCall(PetscPrintf(PETSC_COMM_WORLD,"TRLANCZOS: using one-sided orthogonalization\n"));
107			}
108
109	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(SVDSolve(svd));
110	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(SVDErrorView(svd,SVD_ERROR_NORM,NULL));
111
112			/* Free work space */
113	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(SVDDestroy(&svd));
114	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(KSPDestroy(&ksp));
115	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(MatDestroy(&A));
116	4/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 8 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✓ Branch 5 taken 2 times.	60	PetscCall(MatDestroy(&B));
117	3/6 ✓ Branch 0 taken 2 times. ✓ Branch 1 taken 2 times. ✓ Branch 2 taken 2 times. ✗ Branch 3 not taken. ✗ Branch 4 not taken. ✗ Branch 5 not taken.	60	PetscCall(SlepcFinalize());
118			return 0;
119			}
120
121			/*TEST
122
123			test:
124			suffix: 1
125			args: -svd_trlanczos_gbidiag {{single upper lower}}
126			filter: grep -v "TRLANCZOS: using"
127			requires: !single
128
129			test:
130			suffix: 2
131			args: -m 6 -n 12 -p 12 -svd_trlanczos_restart .7
132			requires: !single
133
134			test:
135			suffix: 3
136			args: -s 8 -svd_trlanczos_gbidiag lower
137			requires: !single
138
139			test:
140			suffix: 4
141			args: -s -5 -svd_trlanczos_gbidiag lower
142			requires: !single
143
144			TEST*/
145