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-rw-r--r--TRNS/host/app.c281
1 files changed, 281 insertions, 0 deletions
diff --git a/TRNS/host/app.c b/TRNS/host/app.c
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+/**
+* app.c
+* TRNS 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 <math.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
+
+#if ENERGY
+#include <dpu_probe.h>
+#endif
+
+// Pointer declaration
+static T* A_host;
+static T* A_backup;
+static T* A_result;
+
+// Create input arrays
+static void read_input(T* A, 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());
+ }
+}
+
+// Compute output in the host
+static void trns_host(T* input, unsigned int A, unsigned int B, unsigned int b){
+ T* output = (T*) malloc(sizeof(T) * A * B * b);
+ unsigned int next;
+ for (unsigned int j = 0; j < b; j++){
+ for (unsigned int i = 0; i < A * B; i++){
+ next = (i * A) - (A * B - 1) * (i / B);
+ output[next * b + j] = input[i*b+j];
+ }
+ }
+ for (unsigned int k = 0; k < A * B * b; k++){
+ input[k] = output[k];
+ }
+ free(output);
+}
+
+// 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;
+
+#if ENERGY
+ struct dpu_probe_t probe;
+ DPU_ASSERT(dpu_probe_init("energy_probe", &probe));
+#endif
+
+ unsigned int i = 0;
+ unsigned int N_ = p.N_;
+ const unsigned int n = p.n;
+ const unsigned int M_ = p.M_;
+ const unsigned int m = p.m;
+ N_ = p.exp == 0 ? N_ * NR_DPUS : N_;
+
+ // Input/output allocation
+ A_host = malloc(M_ * m * N_ * n * sizeof(T));
+ A_backup = malloc(M_ * m * N_ * n * sizeof(T));
+ A_result = malloc(M_ * m * N_ * n * sizeof(T));
+ T* done_host = malloc(M_ * n); // Host array to reset done array of step 3
+ memset(done_host, 0, M_ * n);
+
+ // Create an input file with arbitrary data
+ read_input(A_host, M_ * m * N_ * n);
+ memcpy(A_backup, A_host, M_ * m * N_ * n * sizeof(T));
+
+ // Timer declaration
+ Timer timer;
+
+ printf("NR_TASKLETS\t%d\n", NR_TASKLETS);
+ printf("M_\t%u, m\t%u, N_\t%u, n\t%u\n", M_, m, N_, n);
+
+ // Loop over main kernel
+ for(int rep = 0; rep < p.n_warmup + p.n_reps; rep++) {
+
+ int timer_fix = 0;
+ // Compute output on CPU (performance comparison and verification purposes)
+ memcpy(A_host, A_backup, M_ * m * N_ * n * sizeof(T));
+ if(rep >= p.n_warmup)
+ start(&timer, 0, rep - p.n_warmup + timer_fix);
+ trns_host(A_host, M_ * m, N_ * n, 1);
+ if(rep >= p.n_warmup)
+ stop(&timer, 0);
+
+ unsigned int curr_dpu = 0;
+ unsigned int active_dpus;
+ unsigned int active_dpus_before = 0;
+ unsigned int first_round = 1;
+
+ while(curr_dpu < N_){
+ // Allocate DPUs and load binary
+ if((N_ - curr_dpu) > NR_DPUS){
+ active_dpus = NR_DPUS;
+ } else {
+ active_dpus = (N_ - curr_dpu);
+ }
+ if((active_dpus_before != active_dpus) && (!(first_round))){
+ DPU_ASSERT(dpu_free(dpu_set));
+ DPU_ASSERT(dpu_alloc(active_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);
+ } else if (first_round){
+ DPU_ASSERT(dpu_alloc(active_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);
+ }
+
+ printf("Load input data (step 1)\n");
+ if(rep >= p.n_warmup)
+ start(&timer, 1, rep - p.n_warmup + timer_fix);
+ // Load input matrix (step 1)
+ for(unsigned int j = 0; j < M_ * m; j++){
+ unsigned int i = 0;
+ DPU_FOREACH(dpu_set, dpu) {
+ DPU_ASSERT(dpu_prepare_xfer(dpu, &A_backup[j * N_ * n + n * (i + curr_dpu)]));
+ i++;
+ }
+ DPU_ASSERT(dpu_push_xfer(dpu_set, DPU_XFER_TO_DPU, DPU_MRAM_HEAP_POINTER_NAME, sizeof(T) * j * n, sizeof(T) * n, DPU_XFER_DEFAULT));
+ }
+ if(rep >= p.n_warmup)
+ stop(&timer, 1);
+ // Reset done array (for step 3)
+ DPU_FOREACH(dpu_set, dpu) {
+ DPU_ASSERT(dpu_prepare_xfer(dpu, done_host));
+ }
+ DPU_ASSERT(dpu_push_xfer(dpu_set, DPU_XFER_TO_DPU, DPU_MRAM_HEAP_POINTER_NAME, M_ * m * n * sizeof(T), (M_ * n) / 8 == 0 ? 8 : M_ * n, DPU_XFER_DEFAULT));
+
+ unsigned int kernel = 0;
+ dpu_arguments_t input_arguments = {m, n, M_, kernel};
+ DPU_FOREACH(dpu_set, dpu, i) {
+ DPU_ASSERT(dpu_prepare_xfer(dpu, &input_arguments));
+ }
+ DPU_ASSERT(dpu_push_xfer(dpu_set, DPU_XFER_TO_DPU, "DPU_INPUT_ARGUMENTS", 0, sizeof(input_arguments), DPU_XFER_DEFAULT));
+ printf("Run step 2 on DPU(s) \n");
+ // Run DPU kernel
+ if(rep >= p.n_warmup){
+ start(&timer, 2, rep - p.n_warmup + timer_fix);
+#if ENERGY
+ DPU_ASSERT(dpu_probe_start(&probe));
+#endif
+ }
+ DPU_ASSERT(dpu_launch(dpu_set, DPU_SYNCHRONOUS));
+ if(rep >= p.n_warmup){
+ stop(&timer, 2);
+#if ENERGY
+ DPU_ASSERT(dpu_probe_stop(&probe));
+#endif
+ }
+#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
+
+ kernel = 1;
+ dpu_arguments_t input_arguments2 = {m, n, M_, kernel};
+ DPU_FOREACH(dpu_set, dpu, i) {
+ DPU_ASSERT(dpu_prepare_xfer(dpu, &input_arguments2));
+ }
+ DPU_ASSERT(dpu_push_xfer(dpu_set, DPU_XFER_TO_DPU, "DPU_INPUT_ARGUMENTS", 0, sizeof(input_arguments2), DPU_XFER_DEFAULT));
+ printf("Run step 3 on DPU(s) \n");
+ // Run DPU kernel
+ if(rep >= p.n_warmup){
+ start(&timer, 3, rep - p.n_warmup + timer_fix);
+#if ENERGY
+ DPU_ASSERT(dpu_probe_start(&probe));
+#endif
+ }
+ DPU_ASSERT(dpu_launch(dpu_set, DPU_SYNCHRONOUS));
+ if(rep >= p.n_warmup){
+ stop(&timer, 3);
+#if ENERGY
+ DPU_ASSERT(dpu_probe_stop(&probe));
+#endif
+ }
+#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, 4, rep - p.n_warmup + timer_fix);
+ DPU_FOREACH(dpu_set, dpu) {
+ DPU_ASSERT(dpu_prepare_xfer(dpu, (T*)(&A_result[curr_dpu * m * n * M_])));
+ curr_dpu++;
+ }
+ DPU_ASSERT(dpu_push_xfer(dpu_set, DPU_XFER_FROM_DPU, DPU_MRAM_HEAP_POINTER_NAME, 0, sizeof(T) * m * n * M_, DPU_XFER_DEFAULT));
+ if(rep >= p.n_warmup)
+ stop(&timer, 4);
+
+ if(first_round){
+ first_round = 0;
+ }
+ timer_fix++;
+ }
+ DPU_ASSERT(dpu_free(dpu_set));
+
+ }
+
+ // Print timing results
+ printf("CPU ");
+ print(&timer, 0, p.n_reps);
+ printf("CPU-DPU (Step 1) ");
+ print(&timer, 1, p.n_reps);
+ printf("Step 2 ");
+ print(&timer, 2, p.n_reps);
+ printf("Step 3 ");
+ print(&timer, 3, p.n_reps);
+ printf("DPU-CPU ");
+ print(&timer, 4, p.n_reps);
+
+ #if ENERGY
+ double energy;
+ DPU_ASSERT(dpu_probe_get(&probe, DPU_ENERGY, DPU_AVERAGE, &energy));
+ printf("DPU Energy (J): %f\t", energy);
+ #endif
+
+ // Check output
+ bool status = true;
+ for (i = 0; i < M_ * m * N_ * n; i++) {
+ if(A_host[i] != A_result[i]){
+ status = false;
+#if PRINT
+ printf("%d: %lu -- %lu\n", i, A_host[i], A_result[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_host);
+ free(A_backup);
+ free(A_result);
+ free(done_host);
+
+ return status ? 0 : -1;
+}
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