+/* Copy to src/include/xbt/ folder */
+
+/* Injecting timings for previously benchmarked code blocks */
+
+/* Use functions from bench.h to benchmark execution time of the desired block,
+ * then Rhist.R script to read all timings and produce histograms
+ * and finally inject.h to inject values instead of executing block*/
+
+#ifndef __INJECT_H__
+#define __INJECT_H__
+
+#include <time.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include "xbt/RngStream.h"
+#include "xbt/dict.h"
+#include "xbt/sysdep.h"
+
+#define MAX_LINE_INJ 1000
+
+/*
+ * Histogram entry for each measured block
+ * Each entry is guarded inside xbt dictionary which is read from the file */
+typedef struct xbt_hist {
+ int n;
+ double mean;
+ double *breaks;
+ double *percentage;
+ char* block_id;
+} xbt_hist_t;
+
+extern RngStream get_randgen(void);
+typedef RngStream (*get_randgen_func_t)(void);
+
+extern xbt_dict_t get_dict(void);
+typedef xbt_dict_t (*get_dict_func_t)(void);
+
+static inline void xbt_inject_init(char *inputfile);
+static inline void inject_init_starpu(char *inputfile, xbt_dict_t *dict, RngStream *rng);
+
+static inline double xbt_inject_time(char *key);
+static inline double xbt_mean_time(char *key);
+static inline double xbt_hist_time(char *key);
+
+/* Initializing xbt dictionary for SMPI version, reading xbt_hist_t entries line by line */
+static inline void xbt_inject_init(char *inputfile)
+{
+ xbt_dict_t mydict = get_dict();
+ FILE* fpInput = fopen(inputfile, "r");
+ if (fpInput == NULL)
+ printf("Error while opening the inputfile");
+ fseek(fpInput, 0, 0);
+
+ char line[200];
+ char *key;
+ int i;
+ xbt_hist_t* data;
+
+ if (fgets(line, 200, fpInput) == NULL)
+ printf("Error input file is empty!");//Skipping first row
+ while (fgets(line, 200, fpInput) != NULL)
+ {
+ key = strtok(line, " \t");
+
+ data = xbt_dict_get_or_null(mydict, key);
+ if (data)
+ printf("Error, data with that block_id already exists!");
+
+ data = (xbt_hist_t *) xbt_new(xbt_hist_t, 1);
+
+ data->block_id = key;
+ data->mean = atof(strtok(NULL, " \t"));
+ data->n = atoi(strtok(NULL, " \t"));
+
+ data->breaks = (double*) malloc(sizeof(double) * data->n);
+ data->percentage = (double*) malloc(sizeof(double) * (data->n - 1));
+ for (i = 0; i < data->n; i++)
+ data->breaks[i] = atof(strtok(NULL, " \t"));
+ for (i = 0; i < (data->n - 1); i++)
+ data->percentage[i] = atof(strtok(NULL, " \t"));
+
+ xbt_dict_set(mydict, key, data, NULL);
+ }
+}
+
+/* Initializing xbt dictionary for StarPU version, reading xbt_hist_t entries line by line */
+static inline void inject_init_starpu(char *inputfile, xbt_dict_t *dict, RngStream *rng)
+{
+ *dict = xbt_dict_new_homogeneous(free);
+ *rng = RngStream_CreateStream("Randgen1");
+ unsigned long seed[] = {134, 233445, 865, 2634, 424242, 876541};
+ RngStream_SetSeed(*rng, seed);
+
+ xbt_dict_t mydict = *dict;
+ mydict = *dict;
+ FILE* fpInput = fopen(inputfile, "r");
+ if (fpInput == NULL)
+ printf("Error while opening the inputfile");
+
+ fseek(fpInput, 0, 0);
+
+ char line[MAX_LINE_INJ];
+ char *key;
+ int i;
+ xbt_hist_t* data;
+
+ if (fgets(line, MAX_LINE_INJ, fpInput) == NULL)
+ printf("Error input file is empty!");//Skipping first row
+
+
+ while (fgets(line, MAX_LINE_INJ, fpInput) != NULL)
+ {
+ key = strtok(line, " \t");
+
+ data = xbt_dict_get_or_null(mydict, key);
+ if (data)
+ printf("Error, data with that block_id already exists!");
+
+ data = (xbt_hist_t *) xbt_new(xbt_hist_t, 1);
+ data->block_id = key;
+ data->mean = atof(strtok(NULL, " \t"));
+ data->n = atoi(strtok(NULL, " \t"));
+ data->breaks = (double*) malloc(sizeof(double) * data->n);
+ data->percentage = (double*) malloc(sizeof(double) * (data->n - 1));
+
+ for (i = 0; i < data->n; i++)
+ data->breaks[i] = atof(strtok(NULL, " \t"));
+ for (i = 0; i < (data->n - 1); i++)
+ {
+ data->percentage[i] = atof(strtok(NULL, " \t"));
+ }
+
+ xbt_dict_set(mydict, key, data, NULL);
+ }
+}
+
+/* Injecting time */
+static inline double xbt_inject_time(char *key)
+{
+ return xbt_hist_time(key);
+ //return xbt_mean_time(key);
+}
+
+/* Injecting mean value */
+static inline double xbt_mean_time(char *key)
+{
+ xbt_dict_t mydict = get_dict();
+ xbt_hist_t* data = xbt_dict_get_or_null(mydict, key);
+
+ if (!data)
+ {
+ printf("Warning: element with specified key does not exist (%s)\n",key);
+ return 0;
+ }
+
+ return data->mean;
+}
+
+/* Injecting random value from the histogram */
+static inline double xbt_hist_time(char *key)
+{
+ int i, k = 0;
+ double left = 0, right = 1;
+ double timer = 0;
+ RngStream rng_stream;
+ double r, r2;
+
+ xbt_dict_t mydict = get_dict();
+ xbt_hist_t* data = xbt_dict_get_or_null(mydict, key);
+
+ if (!data)
+ {
+ printf("Warning: element with specified key does not exist (%s)\n",key);
+ return 0;
+ }
+
+ /* Choosing random interval of the histogram */
+ rng_stream = get_randgen();
+ r = RngStream_RandU01(rng_stream);
+ for (i = 0; i < (data->n - 1); i++)
+ {
+ left += (i == 0) ? 0 : data->percentage[i - 1];
+ right += data->percentage[i];
+ if (left < r && r <= right)
+ k = i;
+ }
+
+ /* Choosing random value inside the interval of the histogram */
+ r2 = RngStream_RandU01(rng_stream);
+ timer = data->breaks[k] + r2 * (data->breaks[k + 1] - data->breaks[k]);
+
+ return timer;
+}
+
+#endif // __INJECT_H__
+
