| 29 | } |
| 30 | |
| 31 | int test() { |
| 32 | hls::stream<ap_uint<W_STRM> > istrm; |
| 33 | hls::stream<bool> e_istrm; |
| 34 | hls::stream<ap_uint<W_STRM> > ostrm; |
| 35 | hls::stream<bool> e_ostrm; |
| 36 | |
| 37 | std::cout << std::dec << "W_STRM = " << W_STRM << std::endl; |
| 38 | std::cout << std::dec << "W_PU = " << W_PU << std::endl; |
| 39 | std::cout << std::dec << "NPU = " << NPU << std::endl; |
| 40 | std::cout << std::dec << "NS = " << NS << std::endl; |
| 41 | /* |
| 42 | * 1. Generate test data and merege them to a wide width stream |
| 43 | * 2. Updata the data in hardware |
| 44 | * 3. Fetch back the updated data and calculate their dot product. |
| 45 | * |
| 46 | * Distribution on load balance is NOT order-preserving, so calculate their dot product to verify the result. |
| 47 | */ |
| 48 | |
| 49 | // Generate data |
| 50 | ap_uint<W_STRM> gld = 0; |
| 51 | for (int i = 0; i < NS; ++i) { |
| 52 | ap_uint<W_STRM> bd = 0; |
| 53 | // generate test data |
| 54 | for (int j = 0; j < W_STRM / W_PU; ++j) { |
| 55 | ap_uint<W_PRC> p = i; |
| 56 | ap_uint<W_DSC> d = i % 10; |
| 57 | ap_uint<W_PU> data = 0; |
| 58 | data.range(W_PRC - 1, 0) = p; |
| 59 | data.range(W_DSC + W_PRC - 1, W_PRC) = d; |
| 60 | // combine to a wide width data |
| 61 | bd.range((j + 1) * W_PU - 1, j * W_PU) = data; |
| 62 | // calculate the golden result |
| 63 | ap_uint<W_PU> nd = update_data(data); |
| 64 | gld += calculate(nd); |
| 65 | } |
| 66 | istrm.write(bd); |
| 67 | e_istrm.write(false); |
| 68 | } |
| 69 | e_istrm.write(true); |
| 70 | // Update data in hardware |
| 71 | test_core(istrm, e_istrm, ostrm, e_ostrm); |
| 72 | |
| 73 | // Fetch bach the updated data and calculate their dot product. |
| 74 | int nerror = 0; |
| 75 | int count = 0; |
| 76 | ap_uint<W_STRM> total = 0; |
| 77 | while (!e_ostrm.read()) { |
| 78 | ap_uint<W_STRM> bd = ostrm.read(); |
| 79 | // calculate the test result |
| 80 | for (int j = 0; j < W_STRM / W_PU; ++j) { |
| 81 | ap_uint<W_PU> data = bd.range((j + 1) * W_PU - 1, j * W_PU); |
| 82 | total += calculate(data); |
| 83 | } |
| 84 | count++; |
| 85 | } |
| 86 | std::cout << "\n total=" << total << " gld=" << gld << std::endl; |
| 87 | if (total != gld) { |
| 88 | nerror = 1; |