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Diffstat (limited to 'Microbenchmarks/STRIDED/host/app.c')
| -rw-r--r-- | Microbenchmarks/STRIDED/host/app.c | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/Microbenchmarks/STRIDED/host/app.c b/Microbenchmarks/STRIDED/host/app.c new file mode 100644 index 0000000..e9d119a --- /dev/null +++ b/Microbenchmarks/STRIDED/host/app.c @@ -0,0 +1,211 @@ +/** +* app.c +* Strided Access Host Application Source File +* +*/ +#include <stdio.h> +#include <stdlib.h> +#include <stdbool.h> +#include <string.h> +#include <dpu.h> +#include <dpu_log.h> +#include <unistd.h> +#include <getopt.h> +#include <assert.h> + +#include "../support/common.h" +#include "../support/timer.h" +#include "../support/params.h" + +// Define the DPU Binary path as DPU_BINARY here +#ifndef DPU_BINARY +#define DPU_BINARY "./bin/dpu_code" +#endif + +// Create input arrays +static void read_input(T* A, T* B, T* C, unsigned int nr_elements) { + srand(0); + printf("nr_elements\t%u\t", nr_elements); + for (unsigned int i = 0; i < nr_elements; i++) { + A[i] = (T) (rand()); + B[i] = A[i]; + C[i] = A[i]; + } +} + +// Compute output in the host +static void stride_host(T* B, T* A, unsigned int nr_elements, int s) { + for (unsigned int i = 0; i < nr_elements; i+=s){ + B[i] = A[i]; + } +} + +// Pointer declaration +static T* A; +static T* B; +static T* C; + +// Main of the Host Application +int main(int argc, char **argv) { + + struct Params p = input_params(argc, argv); + + struct dpu_set_t dpu_set, dpu; + uint32_t nr_of_dpus; + + // Allocate DPUs and load binary + DPU_ASSERT(dpu_alloc(NR_DPUS, NULL, &dpu_set)); + DPU_ASSERT(dpu_load(dpu_set, DPU_BINARY, NULL)); + DPU_ASSERT(dpu_get_nr_dpus(dpu_set, &nr_of_dpus)); + printf("Allocated %d DPU(s)\n", nr_of_dpus); + + unsigned int i = 0; + double cc = 0; + double cc_min = 0; + const unsigned int input_size = p.exp == 0 ? p.input_size * nr_of_dpus : p.input_size; + + // Input/output allocation + A = malloc(input_size * sizeof(T)); + B = malloc(input_size * sizeof(T)); + C = malloc(input_size * sizeof(T)); + T *bufferA = A; + T *bufferB = B; + + // Create an input file with arbitrary data + read_input(A, B, C, input_size); + + // Timer declaration + Timer timer; + + printf("NR_TASKLETS\t%d\tBL\t%d\n", NR_TASKLETS, BL); + + // Loop over main kernel + for(int rep = 0; rep < p.n_warmup + p.n_reps; rep++) { + + // Compute output on CPU (performance comparison and verification purposes) + if(rep >= p.n_warmup) + start(&timer, 0, rep - p.n_warmup); + stride_host(C, A, input_size, p.stride); + if(rep >= p.n_warmup) + stop(&timer, 0); + + printf("Load input data\n"); + if(rep >= p.n_warmup) + start(&timer, 1, rep - p.n_warmup); + // Input arguments + const unsigned int input_size_dpu = input_size / nr_of_dpus; + unsigned int kernel = 0; + dpu_arguments_t input_arguments = {input_size_dpu * sizeof(T), p.stride, kernel}; + DPU_ASSERT(dpu_copy_to(dpu_set, "DPU_INPUT_ARGUMENTS", 0, (const void *)&input_arguments, sizeof(input_arguments))); + // Copy input arrays + i = 0; + DPU_FOREACH (dpu_set, dpu) { + DPU_ASSERT(dpu_copy_to(dpu, DPU_MRAM_HEAP_POINTER_NAME, 0, bufferA + input_size_dpu * i, input_size_dpu * sizeof(T))); +#ifdef COARSECOARSE + DPU_ASSERT(dpu_copy_to(dpu, DPU_MRAM_HEAP_POINTER_NAME, input_size_dpu * sizeof(T), bufferB + input_size_dpu * i, input_size_dpu * sizeof(T))); +#endif + i++; + } + if(rep >= p.n_warmup) + stop(&timer, 1); + + printf("Run program on DPU(s) \n"); + // Run DPU kernel + if(rep >= p.n_warmup) + start(&timer, 2, rep - p.n_warmup); + DPU_ASSERT(dpu_launch(dpu_set, DPU_SYNCHRONOUS)); + if(rep >= p.n_warmup) + stop(&timer, 2); + +#if PRINT + { + unsigned int each_dpu = 0; + printf("Display DPU Logs\n"); + DPU_FOREACH (dpu_set, dpu) { + printf("DPU#%d:\n", each_dpu); + DPU_ASSERT(dpulog_read_for_dpu(dpu.dpu, stdout)); + each_dpu++; + } + } +#endif + + printf("Retrieve results\n"); + if(rep >= p.n_warmup) + start(&timer, 3, rep - p.n_warmup); + dpu_results_t results[nr_of_dpus]; + i = 0; + DPU_FOREACH (dpu_set, dpu) { + // Copy output array + DPU_ASSERT(dpu_copy_from(dpu, DPU_MRAM_HEAP_POINTER_NAME, input_size_dpu * sizeof(T), bufferB + input_size_dpu * i, input_size_dpu * sizeof(T))); + +#if PERF + results[i].cycles = 0; + // Retrieve tasklet timings + for (unsigned int each_tasklet = 0; each_tasklet < NR_TASKLETS; each_tasklet++) { + dpu_results_t result; + result.cycles = 0; + DPU_ASSERT(dpu_copy_from(dpu, "DPU_RESULTS", each_tasklet * sizeof(dpu_results_t), &result, sizeof(dpu_results_t))); + if (result.cycles > results[i].cycles) + results[i].cycles = result.cycles; + } +#endif + i++; + } + if(rep >= p.n_warmup) + stop(&timer, 3); + +#if PERF + uint64_t max_cycles = 0; + uint64_t min_cycles = 0xFFFFFFFFFFFFFFFF; + // Print performance results + if(rep >= p.n_warmup){ + i = 0; + DPU_FOREACH(dpu_set, dpu) { + if(results[i].cycles > max_cycles) + max_cycles = results[i].cycles; + if(results[i].cycles < min_cycles) + min_cycles = results[i].cycles; + i++; + } + cc += (double)max_cycles; + cc_min += (double)min_cycles; + } +#endif + + } + printf("DPU cycles = %g cc\n", cc / p.n_reps); + + // Print timing results + printf("CPU "); + print(&timer, 0, p.n_reps); + printf("CPU-DPU "); + print(&timer, 1, p.n_reps); + printf("DPU Kernel "); + print(&timer, 2, p.n_reps); + printf("DPU-CPU "); + print(&timer, 3, p.n_reps); + + // Check output + bool status = true; + for (i = 0; i < input_size; i++) { + if(C[i] != bufferB[i]){ + status = false; +#if PRINT + printf("%d: %u -- %u\n", i, C[i], bufferB[i]); +#endif + } + } + if (status) { + printf("[" ANSI_COLOR_GREEN "OK" ANSI_COLOR_RESET "] Outputs are equal\n"); + } else { + printf("[" ANSI_COLOR_RED "ERROR" ANSI_COLOR_RESET "] Outputs differ!\n"); + } + + // Deallocation + free(A); + free(B); + free(C); + DPU_ASSERT(dpu_free(dpu_set)); + + return status ? 0 : -1; +} |