path: root/VA/host/app.c

/**
* app.c
* VA 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

#define XSTR(x) STR(x)
#define STR(x) #x

#if ENERGY
#include <dpu_probe.h>
#endif

#if WITH_DPUINFO
#include <dpu_management.h>
#include <dpu_target_macros.h>
#endif

#if SDK_SINGLETHREADED
#define DPU_ALLOC_PROFILE "nrThreadsPerRank=0"
#else
#define DPU_ALLOC_PROFILE NULL
#endif

// Pointer declaration
static T* A;
static T* B;
static T* C;
static T* C2;

// Create input arrays
static void read_input(T* A, T* B, unsigned int nr_elements) {
    srand(0);
    for (unsigned int i = 0; i < nr_elements; i++) {
        A[i] = (T) (rand());
        B[i] = (T) (rand());
    }
}

// Compute output in the host
static void vector_addition_host(T* C, T* A, T* B, unsigned int nr_elements) {
    for (unsigned int i = 0; i < nr_elements; i++) {
        C[i] = A[i] + B[i];
    }
}

// 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;
    uint32_t nr_of_ranks;

#if ENERGY
    struct dpu_probe_t probe;
    DPU_ASSERT(dpu_probe_init("energy_probe", &probe));
#endif

    printf("WITH_ALLOC_OVERHEAD=%d WITH_LOAD_OVERHEAD=%d WITH_FREE_OVERHEAD=%d\n", WITH_ALLOC_OVERHEAD, WITH_LOAD_OVERHEAD, WITH_FREE_OVERHEAD);

    // Timer declaration
    Timer timer;

    // Allocate DPUs and load binary
#if !WITH_ALLOC_OVERHEAD
    DPU_ASSERT(dpu_alloc(NR_DPUS, DPU_ALLOC_PROFILE, &dpu_set));
    timer.time[0] = 0; // alloc
#endif
#if !WITH_LOAD_OVERHEAD
    DPU_ASSERT(dpu_load(dpu_set, DPU_BINARY, NULL));
    DPU_ASSERT(dpu_get_nr_dpus(dpu_set, &nr_of_dpus));
    DPU_ASSERT(dpu_get_nr_ranks(dpu_set, &nr_of_ranks));
    assert(nr_of_dpus == NR_DPUS);
    timer.time[1] = 0; // load
#endif
#if !WITH_FREE_OVERHEAD
    timer.time[6] = 0; // free
#endif

    unsigned int i = 0;
    const unsigned int input_size = p.exp == 0 ? p.input_size * NR_DPUS : p.input_size;
    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_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_DPUS * sizeof(T));
    B = malloc(input_size_dpu_8bytes * NR_DPUS * sizeof(T));
    C = malloc(input_size_dpu_8bytes * NR_DPUS * sizeof(T));
    C2 = malloc(input_size_dpu_8bytes * NR_DPUS * sizeof(T));
    T *bufferA = A;
    T *bufferB = B;
    T *bufferC = C2;

    // Create an input file with arbitrary data
    read_input(A, B, input_size);

    // Loop over main kernel
    for(int rep = 0; rep < p.n_warmup + p.n_reps; rep++) {

#if WITH_ALLOC_OVERHEAD
        if(rep >= p.n_warmup) {
            start(&timer, 0, 0);
        }
        DPU_ASSERT(dpu_alloc(NR_DPUS, DPU_ALLOC_PROFILE, &dpu_set));
        if(rep >= p.n_warmup) {
            stop(&timer, 0);
        }
#endif
#if WITH_DPUINFO
        printf("DPUs:");
        DPU_FOREACH (dpu_set, dpu) {
            int rank = dpu_get_rank_id(dpu_get_rank(dpu_from_set(dpu))) & DPU_TARGET_MASK;
            int slice = dpu_get_slice_id(dpu_from_set(dpu));
            int member = dpu_get_member_id(dpu_from_set(dpu));
            printf(" %d(%d.%d)", rank, slice, member);
        }
        printf("\n");
#endif
#if WITH_LOAD_OVERHEAD
        if(rep >= p.n_warmup) {
            start(&timer, 1, 0);
        }
        DPU_ASSERT(dpu_load(dpu_set, DPU_BINARY, NULL));
        if(rep >= p.n_warmup) {
            stop(&timer, 1);
        }
        DPU_ASSERT(dpu_get_nr_dpus(dpu_set, &nr_of_dpus));
        DPU_ASSERT(dpu_get_nr_ranks(dpu_set, &nr_of_ranks));
        assert(nr_of_dpus == NR_DPUS);
#endif

        // Compute output on CPU (performance comparison and verification purposes)
        if(rep >= p.n_warmup) {
            start(&timer, 2, 0);
        }
        vector_addition_host(C, A, B, input_size);
        if(rep >= p.n_warmup) {
            stop(&timer, 2);
        }

        if(rep >= p.n_warmup) {
            start(&timer, 3, 0);
        }
        // Input arguments
        unsigned int kernel = 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].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].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));
 
        DPU_FOREACH(dpu_set, dpu, i) {
            DPU_ASSERT(dpu_prepare_xfer(dpu, bufferB + input_size_dpu_8bytes * i));
        }
        DPU_ASSERT(dpu_push_xfer(dpu_set, DPU_XFER_TO_DPU, DPU_MRAM_HEAP_POINTER_NAME, input_size_dpu_8bytes * sizeof(T), input_size_dpu_8bytes * sizeof(T), DPU_XFER_DEFAULT));
        if(rep >= p.n_warmup) {
            stop(&timer, 3);
        }

        // Run DPU kernel
        if(rep >= p.n_warmup) {
            start(&timer, 4, 0);
            #if ENERGY
            DPU_ASSERT(dpu_probe_start(&probe));
            #endif
        }
        DPU_ASSERT(dpu_launch(dpu_set, DPU_SYNCHRONOUS));
        if(rep >= p.n_warmup) {
            stop(&timer, 4);
            #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

        if(rep >= p.n_warmup) {
            start(&timer, 5, 0);
        }
        i = 0;
        // PARALLEL RETRIEVE TRANSFER
        DPU_FOREACH(dpu_set, dpu, i) {
            DPU_ASSERT(dpu_prepare_xfer(dpu, bufferC + input_size_dpu_8bytes * i));
        }
        DPU_ASSERT(dpu_push_xfer(dpu_set, DPU_XFER_FROM_DPU, DPU_MRAM_HEAP_POINTER_NAME, input_size_dpu_8bytes * sizeof(T), input_size_dpu_8bytes * sizeof(T), DPU_XFER_DEFAULT));
        if(rep >= p.n_warmup) {
            stop(&timer, 5);
        }

#if WITH_ALLOC_OVERHEAD
#if WITH_FREE_OVERHEAD
        if(rep >= p.n_warmup) {
            start(&timer, 6, 0);
        }
#endif
        DPU_ASSERT(dpu_free(dpu_set));
#if WITH_FREE_OVERHEAD
        if(rep >= p.n_warmup) {
            stop(&timer, 6);
        }
#endif
#endif

        // Check output
        bool status = true;
        for (i = 0; i < input_size; i++) {
            if(C[i] != bufferC[i]){ 
                status = false;
#if PRINT
                printf("%d: %u -- %u\n", i, C[i], bufferC[i]);
#endif
            }
        }
        if (status) {
            printf("[" ANSI_COLOR_GREEN "OK" ANSI_COLOR_RESET "] Outputs are equal\n");
            if (rep >= p.n_warmup) {
                printf("[::] VA UPMEM | n_dpus=%d n_ranks=%d n_tasklets=%d e_type=%s block_size_B=%d n_elements=%d n_elements_per_dpu=%d b_sdk_singlethreaded=%d ",
                    nr_of_dpus, nr_of_ranks, NR_TASKLETS, XSTR(T), BLOCK_SIZE, input_size, input_size / NR_DPUS, SDK_SINGLETHREADED);
                printf("| latency_alloc_us=%f latency_load_us=%f latency_cpu_us=%f latency_write_us=%f latency_kernel_us=%f latency_read_us=%f latency_free_us=%f",
                    timer.time[0],
                    timer.time[1],
                    timer.time[2],
                    timer.time[3],
                    timer.time[4],
                    timer.time[5],
                    timer.time[6]);
                printf(" throughput_cpu_MBps=%f throughput_upmem_kernel_MBps=%f throughput_upmem_total_MBps=%f",
                    input_size * 3 * sizeof(T) / timer.time[2],
                    input_size * 3 * sizeof(T) / (timer.time[4]),
                    input_size * 3 * sizeof(T) / (timer.time[0] + timer.time[1] + timer.time[3] + timer.time[4] + timer.time[5] + timer.time[6]));
                printf(" throughput_upmem_wxr_MBps=%f throughput_upmem_lwxr_MBps=%f throughput_upmem_alwxr_MBps=%f",
                    input_size * 3 * sizeof(T) / (timer.time[3] + timer.time[4] + timer.time[5]),
                    input_size * 3 * sizeof(T) / (timer.time[1] + timer.time[3] + timer.time[4] + timer.time[5]),
                    input_size * 3 * sizeof(T) / (timer.time[0] + timer.time[1] + timer.time[3] + timer.time[4] + timer.time[5]));
                printf(" throughput_cpu_MOpps=%f throughput_upmem_kernel_MOpps=%f throughput_upmem_total_MOpps=%f",
                    input_size / timer.time[2],
                    input_size / (timer.time[4]),
                    input_size / (timer.time[0] + timer.time[1] + timer.time[3] + timer.time[4] + timer.time[5] + timer.time[6]));
                printf(" throughput_upmem_wxr_MOpps=%f throughput_upmem_lwxr_MOpps=%f throughput_upmem_alwxr_MOpps=%f\n",
                    input_size / (timer.time[3] + timer.time[4] + timer.time[5]),
                    input_size / (timer.time[1] + timer.time[3] + timer.time[4] + timer.time[5]),
                    input_size / (timer.time[0] + timer.time[1] + timer.time[3] + timer.time[4] + timer.time[5]));
            }
        } else {
            printf("[" ANSI_COLOR_RED "ERROR" ANSI_COLOR_RESET "] Outputs differ!\n");
        }
    }
    printf("throughput_*_MOpps == n_elements / (+ latency_*_us ...)\n");
    printf("throughput_*_MBps == 3 * sizeof(e_type) * throughput_*_MOpps \n");

    // 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	


    // Deallocation
    free(A);
    free(B);
    free(C);
    free(C2);

#if !WITH_ALLOC_OVERHEAD
    DPU_ASSERT(dpu_free(dpu_set));
#endif
	
    return 0;
}