| 42 | |
| 43 | template<typename T> |
| 44 | Array<T> matmul(const common::SparseArray<T>& lhs, const Array<T>& rhsIn, |
| 45 | af_mat_prop optLhs, af_mat_prop optRhs) { |
| 46 | int lRowDim = (optLhs == AF_MAT_NONE) ? 0 : 1; |
| 47 | static const int rColDim = |
| 48 | 1; // Unsupported : (optRhs == AF_MAT_NONE) ? 1 : 0; |
| 49 | |
| 50 | dim4 lDims = lhs.dims(); |
| 51 | dim4 rDims = rhsIn.dims(); |
| 52 | dim4 rStrides = rhsIn.strides(); |
| 53 | int M = lDims[lRowDim]; |
| 54 | int N = rDims[rColDim]; |
| 55 | |
| 56 | Array<T> out = createEmptyArray<T>(af::dim4(M, N, 1, 1)); |
| 57 | dim4 oStrides = out.strides(); |
| 58 | |
| 59 | static const T alpha = scalar<T>(1.0); |
| 60 | static const T beta = scalar<T>(0.0); |
| 61 | |
| 62 | const Array<T>& values = lhs.getValues(); |
| 63 | const Array<int>& rowIdx = lhs.getRowIdx(); |
| 64 | const Array<int>& colIdx = lhs.getColIdx(); |
| 65 | sycl::buffer<T, 1> valBuf = values.template getBufferWithOffset<T>(); |
| 66 | sycl::buffer<int, 1> rowBuf = rowIdx.template getBufferWithOffset<int>(); |
| 67 | sycl::buffer<int, 1> colBuf = colIdx.template getBufferWithOffset<int>(); |
| 68 | |
| 69 | const auto lOpts = toBlasTranspose(optLhs); |
| 70 | const auto rOpts = toBlasTranspose(optRhs); |
| 71 | |
| 72 | sycl::buffer<T, 1> rhsBuf = rhsIn.template getBufferWithOffset<T>(); |
| 73 | sycl::buffer<T, 1> outBuf = out.template getBufferWithOffset<T>(); |
| 74 | |
| 75 | ::oneapi::mkl::sparse::matrix_handle_t CSRHandle = nullptr; |
| 76 | ::oneapi::mkl::sparse::init_matrix_handle(&CSRHandle); |
| 77 | ::oneapi::mkl::sparse::set_csr_data( |
| 78 | getQueue(), CSRHandle, lDims[0], lDims[1], |
| 79 | ::oneapi::mkl::index_base::zero, rowBuf, colBuf, valBuf); |
| 80 | |
| 81 | if (N == 1) { |
| 82 | ::oneapi::mkl::sparse::gemv(getQueue(), lOpts, alpha, CSRHandle, rhsBuf, |
| 83 | beta, outBuf); |
| 84 | } else { |
| 85 | ::oneapi::mkl::sparse::gemm( |
| 86 | getQueue(), ::oneapi::mkl::layout::col_major, lOpts, rOpts, alpha, |
| 87 | CSRHandle, rhsBuf, N, rStrides[1], beta, outBuf, oStrides[1]); |
| 88 | } |
| 89 | ::oneapi::mkl::sparse::release_matrix_handle(getQueue(), &CSRHandle); |
| 90 | return out; |
| 91 | } |
| 92 | |
| 93 | #define INSTANTIATE_SPARSE(T) \ |
| 94 | template Array<T> matmul<T>(const common::SparseArray<T>& lhs, \ |