108 PetscErrorCode MyPtShellPMultSymbolic(Mat S, Mat P, Mat PtAP, void **ctx)  in MyPtShellPMultSymbolic()  argument
114   PetscCall(MatShellSetContext(PtAP, userdata));  in MyPtShellPMultSymbolic()
119 PetscErrorCode MyPtShellPMultNumeric(Mat S, Mat P, Mat PtAP, PetscCtx ctx)  in MyPtShellPMultNumeric()  argument
133   PetscCall(MatShellSetOperation(PtAP, MATOP_MULT, (PetscErrorCodeFn *)proj_mult));  in MyPtShellPMultNumeric()
134   PetscCall(MatSetUp(PtAP));  in MyPtShellPMultNumeric()
135   PetscCall(MatAssemblyBegin(PtAP, MAT_FINAL_ASSEMBLY));  in MyPtShellPMultNumeric()
136   PetscCall(MatAssemblyEnd(PtAP, MAT_FINAL_ASSEMBLY));  in MyPtShellPMultNumeric()
204   Mat          X, B, A, Bt, T, T2, PtAP = NULL, RARt = NULL, R = NULL;  in main()  local
445     PetscCall(MatPtAP(A, B, MAT_INITIAL_MATRIX, PETSC_DETERMINE, &PtAP));  in main()
446     PetscCall(MatPtAPMultEqual(A, B, PtAP, 10, &flg));  in main()
451       PetscCall(MatAXPY(T2, -1.0, PtAP, SAME_NONZERO_PATTERN));  in main()
540   if (PtAP) PetscCall(MatPtAP(A, B, MAT_REUSE_MATRIX, PETSC_DETERMINE, &PtAP));  in main()
569     PetscCall(MatPtAPMultEqual(T2, B, PtAP, 10, &flg));  in main()
581         PetscCall(MatView(PtAP, NULL));  in main()
582         PetscCall(MatAXPY(TE, -1.0, PtAP, SAME_NONZERO_PATTERN));  in main()
774   PetscCall(MatDestroy(&PtAP));  in main()