-/* Copyright (c) 2009 Da SimGrid Team. All rights reserved. */
+/* Copyright (c) 2009, 2010. The SimGrid Team.
+ * All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#include "xbt/misc.h"
#include "xbt/log.h"
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(sd_daxparse, sd,"Parsing DAX files");
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(sd_daxparse, sd, "Parsing DAX files");
#undef CLEANUP
#include "dax_dtd.h"
#include "dax_dtd.c"
+
+/* Parsing helpers */
+static void dax_parse_error(char *msg)
+{
+ fprintf(stderr, "Parse error on line %d: %s\n", dax_lineno, msg);
+ abort();
+}
+
+static double dax_parse_double(const char *string)
+{
+ int ret = 0;
+ double value;
+
+ ret = sscanf(string, "%lg", &value);
+ if (ret != 1)
+ dax_parse_error(bprintf("%s is not a double", string));
+ return value;
+}
+
+static int dax_parse_int(const char *string)
+{
+ int ret = 0;
+ int value;
+
+ ret = sscanf(string, "%d", &value);
+ if (ret != 1)
+ dax_parse_error(bprintf("%s is not an integer", string));
+ return value;
+}
+
+/* Ensure that transfer tasks have unique names even though a file is used
+ * several times */
+
+void uniq_transfer_task_name(SD_task_t task)
+{
+ SD_task_t child, parent;
+ xbt_dynar_t children, parents;
+ char *new_name;
+
+ children = SD_task_get_children(task);
+ parents = SD_task_get_parents(task);
+
+ xbt_dynar_get_cpy(children, 0, &child);
+ xbt_dynar_get_cpy(parents, 0, &parent);
+
+ new_name = bprintf("%s_%s_%s",
+ SD_task_get_name(parent),
+ SD_task_get_name(task), SD_task_get_name(child));
+
+ SD_task_set_name(task, new_name);
+
+ xbt_dynar_free_container(&children);
+ xbt_dynar_free_container(&parents);
+ free(new_name);
+}
+
+
static YY_BUFFER_STATE input_buffer;
static xbt_dynar_t result;
+static xbt_dict_t jobs;
+static xbt_dict_t files;
+static SD_task_t current_job;
+static SD_task_t root_task, end_task;
+
+static void dump_res()
+{
+ unsigned int cursor;
+ SD_task_t task;
+ xbt_dynar_foreach(result, cursor, task) {
+ INFO1("Task %d", cursor);
+ SD_task_dump(task);
+ }
+}
-static void SD_task_free(void*t){
+static void dax_task_free(void *task)
+{
+ SD_task_t t = task;
SD_task_destroy(t);
}
-xbt_dynar_t SD_daxload(const char*filename) {
- FILE* in_file = fopen(filename,"r");
+/** @brief loads a DAX file describing a DAG
+ *
+ * See https://confluence.pegasus.isi.edu/display/pegasus/WorkflowGenerator
+ * for more details.
+ */
+xbt_dynar_t SD_daxload(const char *filename)
+{
+ xbt_dict_cursor_t cursor;
+ SD_task_t file;
+ char *name;
+ FILE *in_file = fopen(filename, "r");
xbt_assert1(in_file, "Unable to open \"%s\"\n", filename);
- input_buffer =
- dax__create_buffer(in_file, 10);
+ input_buffer = dax__create_buffer(in_file, 10);
dax__switch_to_buffer(input_buffer);
dax_lineno = 1;
- result = xbt_dynar_new(sizeof(SD_task_t),SD_task_free);
- xbt_assert1(dax_lex(),"Parse error in %s",filename);
+ result = xbt_dynar_new(sizeof(SD_task_t), dax_task_free);
+ files = xbt_dict_new();
+ jobs = xbt_dict_new();
+ root_task = SD_task_create_comp_seq("root", NULL, 0);
+ /* by design the root task is always SCHEDULABLE */
+ __SD_task_set_state(root_task, SD_SCHEDULABLE);
+
+ xbt_dynar_push(result, &root_task);
+ end_task = SD_task_create_comp_seq("end", NULL, 0);
+
+ xbt_assert2(!dax_lex(), "Parse error in %s: %s", filename,
+ dax__parse_err_msg());
dax__delete_buffer(input_buffer);
fclose(in_file);
+ xbt_dict_free(&jobs);
+
+ /* And now, post-process the files.
+ * We want a file task per pair of computation tasks exchanging the file. Duplicate on need
+ * Files not produced in the system are said to be produced by root task (top of DAG).
+ * Files not consumed in the system are said to be consumed by end task (bottom of DAG).
+ */
+
+ xbt_dict_foreach(files, cursor, name, file) {
+ unsigned int cpt1, cpt2;
+ SD_task_t newfile = NULL;
+ SD_dependency_t depbefore, depafter;
+ if (xbt_dynar_length(file->tasks_before) == 0) {
+ xbt_dynar_foreach(file->tasks_after, cpt2, depafter) {
+ SD_task_t newfile =
+ SD_task_create_comm_e2e(file->name, NULL, file->amount);
+ SD_task_dependency_add(NULL, NULL, root_task, newfile);
+ SD_task_dependency_add(NULL, NULL, newfile, depafter->dst);
+#ifdef HAVE_TRACING
+ const char *category = depbefore->src->category;
+ if (category){
+ TRACE_category (category);
+ TRACE_sd_set_task_category (newfile, category);
+ }
+#endif
+ xbt_dynar_push(result, &newfile);
+ }
+ } else if (xbt_dynar_length(file->tasks_after) == 0) {
+ xbt_dynar_foreach(file->tasks_before, cpt2, depbefore) {
+ SD_task_t newfile =
+ SD_task_create_comm_e2e(file->name, NULL, file->amount);
+ SD_task_dependency_add(NULL, NULL, depbefore->src, newfile);
+ SD_task_dependency_add(NULL, NULL, newfile, end_task);
+#ifdef HAVE_TRACING
+ const char *category = depbefore->src->category;
+ if (category){
+ TRACE_category (category);
+ TRACE_sd_set_task_category (newfile, category);
+ }
+#endif
+ xbt_dynar_push(result, &newfile);
+ }
+ } else {
+ xbt_dynar_foreach(file->tasks_before, cpt1, depbefore) {
+ xbt_dynar_foreach(file->tasks_after, cpt2, depafter) {
+ if (depbefore->src == depafter->dst) {
+ WARN2
+ ("File %s is produced and consumed by task %s. This loop dependency will prevent the execution of the task.",
+ file->name, depbefore->src->name);
+ }
+ newfile =
+ SD_task_create_comm_e2e(file->name, NULL, file->amount);
+ SD_task_dependency_add(NULL, NULL, depbefore->src, newfile);
+ SD_task_dependency_add(NULL, NULL, newfile, depafter->dst);
+#ifdef HAVE_TRACING
+ const char *category = depbefore->src->category;
+ if (category){
+ TRACE_category (category);
+ TRACE_sd_set_task_category (newfile, category);
+ }
+#endif
+ xbt_dynar_push(result, &newfile);
+ }
+ }
+ }
+ }
+
+ /* Push end task last */
+ xbt_dynar_push(result, &end_task);
+
+ /* Free previous copy of the files */
+ xbt_dict_free(&files);
+ unsigned int cpt;
+ xbt_dynar_foreach(result, cpt, file) {
+ if (SD_task_get_kind(file) == SD_TASK_COMM_E2E) {
+ uniq_transfer_task_name(file);
+ }
+ }
+
return result;
}
-void STag_dax__adag(void) {
+void STag_dax__adag(void)
+{
+ double version = dax_parse_double(A_dax__adag_version);
+
+ xbt_assert1((version == 2.1),
+ "Expected version 2.1 in <adag> tag, got %f. Fix the parser or your file",
+ version);
+}
+
+void STag_dax__job(void)
+{
+ double runtime = dax_parse_double(A_dax__job_runtime);
+ char *name = bprintf("%s@%s", A_dax__job_id, A_dax__job_name);
+ runtime *= 4200000000.; /* Assume that timings were done on a 4.2GFlops machine. I mean, why not? */
+// INFO3("See <job id=%s runtime=%s %.0f>",A_dax__job_id,A_dax__job_runtime,runtime);
+ current_job = SD_task_create_comp_seq(name, NULL, runtime);
+#ifdef HAVE_TRACING
+ char *category = A_dax__job_name;
+ if (category){
+ TRACE_category (category);
+ TRACE_sd_set_task_category(current_job, category);
+ }
+#endif
+ xbt_dict_set(jobs, A_dax__job_id, current_job, NULL);
+ free(name);
+ xbt_dynar_push(result, ¤t_job);
+}
+
+void STag_dax__uses(void)
+{
+ SD_task_t file;
+ double size = dax_parse_double(A_dax__uses_size);
+ int is_input = (A_dax__uses_link == A_dax__uses_link_input);
+// INFO2("See <uses file=%s %s>",A_dax__uses_file,(is_input?"in":"out"));
+ file = xbt_dict_get_or_null(files, A_dax__uses_file);
+ if (file == NULL) {
+ file = SD_task_create_comm_e2e(A_dax__uses_file, NULL, size);
+ xbt_dict_set(files, A_dax__uses_file, file, &dax_task_free);
+ } else {
+ if (SD_task_get_amount(file) != size) {
+ WARN3("Ignoring file %s size redefinition from %.0f to %.0f",
+ A_dax__uses_file, SD_task_get_amount(file), size);
+ }
+ }
+ if (is_input) {
+ SD_task_dependency_add(NULL, NULL, file, current_job);
+ } else {
+ SD_task_dependency_add(NULL, NULL, current_job, file);
+ if (xbt_dynar_length(file->tasks_before) > 1) {
+ WARN1("File %s created at more than one location...", file->name);
+ }
+ }
}
-void STag_dax__job(void) {
+static SD_task_t current_child;
+void STag_dax__child(void)
+{
+ current_child = xbt_dict_get_or_null(jobs, A_dax__child_ref);
+ if (current_child == NULL)
+ dax_parse_error(bprintf
+ ("Asked to add dependencies to the non-existent %s task",
+ A_dax__child_ref));
}
-void STag_dax__child(void) {
+void ETag_dax__child(void)
+{
+ current_child = NULL;
}
-void STag_dax__parent(void) {
+void STag_dax__parent(void)
+{
+ SD_task_t parent = xbt_dict_get_or_null(jobs, A_dax__parent_ref);
+ if (parent == NULL)
+ dax_parse_error(bprintf
+ ("Asked to add a dependency from %s to %s, but %s does not exist",
+ current_child->name, A_dax__parent_ref,
+ A_dax__parent_ref));
+ SD_task_dependency_add(NULL, NULL, parent, current_child);
+ DEBUG2("Control-flow dependency from %s to %s", current_child->name,
+ parent->name);
}
-void ETag_dax__adag(void) {
+void ETag_dax__adag(void)
+{
+// INFO0("See </adag>");
}
-void ETag_dax__job(void) {
+void ETag_dax__job(void)
+{
+ current_job = NULL;
+// INFO0("See </job>");
}
-void ETag_dax__child(void) {
+void ETag_dax__parent(void)
+{
+// INFO0("See </parent>");
}
-void ETag_dax__parent(void) {
+void ETag_dax__uses(void)
+{
+// INFO0("See </uses>");
}