1 files changed, 143 insertions, 0 deletions
diff --git a/UNI/baselines/cpu/app_baseline.c b/UNI/baselines/cpu/app_baseline.c
new file mode 100644
index 0000000..9d3184c
--- /dev/null
+++ b/UNI/baselines/cpu/app_baseline.c
@@ -0,0 +1,143 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <assert.h>
+#include <stdint.h>
+
+#include <omp.h>
+#include "../../support/timer.h"
+
+#define T int64_t
+
+static int pos;
+
+static T *A;
+static T *B;
+static T *C;
+static T *C2;
+
+// Create a "test file"
+static T *create_test_file(unsigned int nr_elements) {
+    //srand(0);
+
+    A = (T*) malloc(nr_elements * sizeof(T));
+    B = (T*) malloc(nr_elements * sizeof(T));
+    C = (T*) malloc(nr_elements * sizeof(T));
+
+    printf("nr_elements\t%u\t", nr_elements);
+    for (int i = 0; i < nr_elements; i++) {
+        //A[i] = (unsigned int) (rand());
+        //A[i] = i+1;
+        //A[i] = i%2==0?i+1:i;
+        A[i] = i%2==0?i:i+1;
+        B[i] = 0;
+    }
+
+    return A;
+}
+
+// Compute output in the host
+static int unique_host(int size, int t) {
+    pos = 0;
+    C[pos] = A[pos];
+
+    omp_set_num_threads(t);
+    #pragma omp parallel for
+    for(int my = 1; my < size; my++) {
+        if(A[my] != A[my-1]) {
+            int p;
+            #pragma omp atomic update
+            pos++;
+            p = pos;
+            C[p] = A[my];
+        }
+    }
+
+    return pos;
+}
+
+// Params 
+typedef struct Params {
+    int   input_size;
+    int   n_warmup;
+    int   n_reps;
+    int   n_threads;
+}Params;
+
+void usage() {
+    fprintf(stderr,
+        "\nUsage:  ./program [options]"
+        "\n"
+        "\nGeneral options:"
+        "\n    -h        help"
+        "\n    -t <T>    # of threads (default=8)"
+        "\n    -w <W>    # of untimed warmup iterations (default=1)"
+        "\n    -e <E>    # of timed repetition iterations (default=3)"
+        "\n"
+        "\nBenchmark-specific options:"
+        "\n    -i <I>    input size (default=8M elements)"
+        "\n");
+}
+
+struct Params input_params(int argc, char **argv) {
+    struct Params p;
+    p.input_size    = 16 << 20;
+    p.n_warmup      = 1;
+    p.n_reps        = 3;
+    p.n_threads     = 8;
+
+    int opt;
+    while((opt = getopt(argc, argv, "hd:i:w:e:t:")) >= 0) {
+        switch(opt) {
+        case 'h':
+        usage();
+        exit(0);
+        break;
+        case 'i': p.input_size    = atoi(optarg); break;
+        case 'w': p.n_warmup      = atoi(optarg); break;
+        case 'e': p.n_reps        = atoi(optarg); break;
+        case 't': p.n_threads     = atoi(optarg); break;
+        default:
+            fprintf(stderr, "\nUnrecognized option!\n");
+            usage();
+            exit(0);
+        }
+    }
+    assert(p.n_threads > 0 && "Invalid # of ranks!");
+
+    return p;
+}
+
+// Main
+int main(int argc, char **argv) {
+
+    struct Params p = input_params(argc, argv);
+
+    const unsigned int file_size = p.input_size;
+    uint32_t accum = 0;
+    int total_count;
+
+    // Create an input file with arbitrary data
+    create_test_file(file_size);
+
+    Timer timer;
+    start(&timer, 0, 0);
+
+    total_count = unique_host(file_size, p.n_threads);
+
+    stop(&timer, 0);
+
+    printf("Total count = %d\t", total_count);
+
+    printf("Kernel ");
+    print(&timer, 0, 1);
+    printf("\n");
+
+    free(A);
+    free(B);
+    free(C);
+    return 0;
+  }