PrIM -- first commit

1 files changed, 285 insertions, 0 deletions

diff --git a/HST-L/host/app.c b/HST-L/host/app.c
new file mode 100644
index 0000000..09ab578
--- /dev/null
+++ b/HST-L/host/app.c
@@ -0,0 +1,285 @@
+/**
+* app.c
+* HST-L Host Application Source File
+*
+*/
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+#include <math.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
+
+#if ENERGY
+#include <dpu_probe.h>
+#endif
+
+// Pointer declaration
+static T* A;
+static unsigned int* histo_host;
+static unsigned int* histo;
+
+// Create input arrays
+static void read_input(T* A, const Params p) {
+
+    char  dctFileName[100];
+    FILE *File = NULL;
+
+    // Open input file
+    unsigned short temp;
+    sprintf(dctFileName, p.file_name);
+    if((File = fopen(dctFileName, "rb")) != NULL) {
+        for(unsigned int y = 0; y < p.input_size; y++) {
+            fread(&temp, sizeof(unsigned short), 1, File);
+            A[y] = (unsigned int)ByteSwap16(temp);
+            if(A[y] >= 4096)
+                A[y] = 4095;
+        }
+        fclose(File);
+    } else {
+        printf("%s does not exist\n", dctFileName);
+        exit(1);
+    }
+}
+
+// Compute output in the host
+static void histogram_host(unsigned int* histo, T* A, unsigned int bins, unsigned int nr_elements, int exp, unsigned int nr_of_dpus) {
+    if(!exp){
+        for (unsigned int i = 0; i < nr_of_dpus; i++) {
+            for (unsigned int j = 0; j < nr_elements; j++) {
+                T d = A[j];
+                histo[i * bins + ((d * bins) >> DEPTH)] += 1;
+            }
+        }
+    }
+    else{
+        for (unsigned int j = 0; j < nr_elements; j++) {
+            T d = A[j];
+            histo[(d * bins) >> DEPTH] += 1;
+        }
+    }
+}
+
+// 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
+
+    // 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;
+    unsigned int input_size; // Size of input image
+    unsigned int dpu_s = p.dpu_s;
+    if(p.exp == 0)
+        input_size = p.input_size * nr_of_dpus; // Size of input image
+    else if(p.exp == 1)
+        input_size = p.input_size; // Size of input image
+	else
+        input_size = p.input_size * dpu_s; // Size of input image
+
+    const unsigned int input_size_8bytes = 
+        ((input_size * sizeof(T)) % 8) != 0 ? roundup(input_size, 8) : input_size; // Input size per DPU (max.), 8-byte aligned
+    const unsigned int input_size_dpu = divceil(input_size, nr_of_dpus); // Input size per DPU (max.)
+    const unsigned int input_size_dpu_8bytes = 
+        ((input_size_dpu * sizeof(T)) % 8) != 0 ? roundup(input_size_dpu, 8) : input_size_dpu; // Input size per DPU (max.), 8-byte aligned
+
+    // Input/output allocation
+    A = malloc(input_size_dpu_8bytes * nr_of_dpus * sizeof(T));
+    T *bufferA = A;
+    histo_host = malloc(p.bins * sizeof(unsigned int));
+    histo = malloc(nr_of_dpus * p.bins * sizeof(unsigned int));
+
+    // Create an input file with arbitrary data
+    read_input(A, p);
+    if(p.exp == 0){
+        for(unsigned int j = 1; j < nr_of_dpus; j++){
+            memcpy(&A[j * input_size_dpu_8bytes], &A[0], input_size_dpu_8bytes * sizeof(T));
+        }
+    }
+    else if(p.exp == 2){
+        for(unsigned int j = 1; j < dpu_s; j++)
+            memcpy(&A[j * p.input_size], &A[0], p.input_size * sizeof(T));
+    }
+
+    // Timer declaration
+    Timer timer;
+
+    printf("NR_TASKLETS\t%d\tBL\t%d\tinput_size\t%u\n", NR_TASKLETS, BL, input_size);
+
+    // Loop over main kernel
+    for(int rep = 0; rep < p.n_warmup + p.n_reps; rep++) {
+        memset(histo_host, 0, p.bins * sizeof(unsigned int));
+        memset(histo, 0, nr_of_dpus * p.bins * sizeof(unsigned int));
+
+        // Compute output on CPU (performance comparison and verification purposes)
+        if(rep >= p.n_warmup)
+            start(&timer, 0, rep - p.n_warmup);
+        histogram_host(histo_host, A, p.bins, p.input_size, 1, nr_of_dpus);
+        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
+        unsigned int kernel = 0;
+        i = 0;
+	    dpu_arguments_t input_arguments[NR_DPUS];
+	    for(i=0; i<nr_of_dpus-1; i++) {
+	        input_arguments[i].size=input_size_dpu_8bytes * sizeof(T); 
+	        input_arguments[i].transfer_size=input_size_dpu_8bytes * sizeof(T); 
+	        input_arguments[i].bins=p.bins;
+	        input_arguments[i].kernel=kernel;
+	    }
+	    input_arguments[nr_of_dpus-1].size=(input_size_8bytes - input_size_dpu_8bytes * (NR_DPUS-1)) * sizeof(T); 
+	    input_arguments[nr_of_dpus-1].transfer_size=input_size_dpu_8bytes * sizeof(T); 
+	    input_arguments[nr_of_dpus-1].bins=p.bins;
+	    input_arguments[nr_of_dpus-1].kernel=kernel;
+
+        // Copy input arrays
+        i = 0;
+        DPU_FOREACH(dpu_set, dpu, i) {
+            DPU_ASSERT(dpu_prepare_xfer(dpu, &input_arguments[i]));
+        }
+        DPU_ASSERT(dpu_push_xfer(dpu_set, DPU_XFER_TO_DPU, "DPU_INPUT_ARGUMENTS", 0, sizeof(input_arguments[0]), DPU_XFER_DEFAULT));
+        DPU_FOREACH(dpu_set, dpu, i) {
+            DPU_ASSERT(dpu_prepare_xfer(dpu, bufferA + input_size_dpu_8bytes * i));
+        }
+        DPU_ASSERT(dpu_push_xfer(dpu_set, DPU_XFER_TO_DPU, DPU_MRAM_HEAP_POINTER_NAME, 0, input_size_dpu_8bytes * sizeof(T), DPU_XFER_DEFAULT));
+        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);
+            #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
+
+        printf("Retrieve results\n");
+        i = 0;
+        if(rep >= p.n_warmup)
+            start(&timer, 3, rep - p.n_warmup);
+        // PARALLEL RETRIEVE TRANSFER
+        DPU_FOREACH(dpu_set, dpu, i) {
+            DPU_ASSERT(dpu_prepare_xfer(dpu, histo + p.bins * i));
+        }
+        DPU_ASSERT(dpu_push_xfer(dpu_set, DPU_XFER_FROM_DPU, DPU_MRAM_HEAP_POINTER_NAME, input_size_dpu_8bytes * sizeof(T), p.bins * sizeof(unsigned int), DPU_XFER_DEFAULT));
+		
+        // Final histogram merging
+        for(i = 1; i < nr_of_dpus; i++){
+            for(unsigned int j = 0; j < p.bins; j++){
+                histo[j] += histo[j + i * p.bins];
+            }			
+        }		
+        if(rep >= p.n_warmup)
+            stop(&timer, 3);
+
+    }
+
+    // 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);
+
+    #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;
+    if(p.exp == 1) 
+        for (unsigned int j = 0; j < p.bins; j++) {
+            if(histo_host[j] != histo[j]){ 
+                status = false;
+#if PRINT
+                printf("%u - %u: %u -- %u\n", j, j, histo_host[j], histo[j]);
+#endif
+            }
+        }
+    else if(p.exp == 2) 
+        for (unsigned int j = 0; j < p.bins; j++) {
+            if(dpu_s * histo_host[j] != histo[j]){ 
+                status = false;
+#if PRINT
+                printf("%u - %u: %u -- %u\n", j, j, dpu_s * histo_host[j], histo[j]);
+#endif
+            }
+        }
+    else
+        for (unsigned int j = 0; j < p.bins; j++) {
+            if(nr_of_dpus * histo_host[j] != histo[j]){ 
+                status = false;
+#if PRINT
+                printf("%u - %u: %u -- %u\n", j, j, nr_of_dpus * histo_host[j], histo[j]);
+#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(histo_host);
+    free(histo);
+    DPU_ASSERT(dpu_free(dpu_set));
+	
+    return status ? 0 : -1;
+}