60 …if (A) PetscCallVoid(static_cast<PetscErrorCode>(MPI_Comm_size(PetscObjectComm((PetscObject)A), &s…  in SetSamplingMat()
61   if (size > 1) PetscCallVoid(PETSC_ERR_SUP);  in SetSamplingMat()
62   PetscCallVoid(PetscObjectReference((PetscObject)A));  in SetSamplingMat()
63   PetscCallVoid(MatDestroy(&this->A));  in SetSamplingMat()
139   PetscCallVoid(MatDestroy(&A));  in ~PetscMatrixSampler()
150   if (!this->A) PetscCallVoid(PETSC_ERR_PLIB);  in sample()
151   PetscCallVoid(MatGetSize(this->A, &M, &N));  in sample()
152   PetscCallVoid(MatGetVecType(this->A, &vtype));  in sample()
153   PetscCallVoid(MatGetLocalSize(this->A, &m, &n));  in sample()
154   PetscCallVoid(PetscObjectGetComm((PetscObject)A, &comm));  in sample()
157     PetscCallVoid(MatCreateDense(comm, n, PETSC_DECIDE, N, samples, px, &X));  in sample()
158     PetscCallVoid(MatCreateDense(comm, m, PETSC_DECIDE, M, samples, py, &Y));  in sample()
159     PetscCallVoid(MatSetVecType(X, vtype));  in sample()
160     PetscCallVoid(MatSetVecType(Y, vtype));  in sample()
164     PetscCallVoid(MatCreateDenseCUDA(comm, n, PETSC_DECIDE, N, samples, px, &X));  in sample()
165     PetscCallVoid(MatCreateDenseCUDA(comm, m, PETSC_DECIDE, M, samples, py, &Y));  in sample()
166     PetscCallVoid(MatSetVecType(X, vtype));  in sample()
167     PetscCallVoid(MatSetVecType(Y, vtype));  in sample()
170   PetscCallVoid(MatMatMult(this->A, X, MAT_REUSE_MATRIX, PETSC_DETERMINE, &Y));  in sample()
174     PetscCallVoid(MatDenseCUDAGetArrayRead(Y, &dummy));  in sample()
175     PetscCallVoid(MatDenseCUDARestoreArrayRead(Y, &dummy));  in sample()
179   PetscCallVoid(MatDestroy(&X));  in sample()
180   PetscCallVoid(MatDestroy(&Y));  in sample()