-/* 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. */
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;
SD_task_destroy(t);
}
+/** @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);
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. Dupplicate on need
+ * 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_cursor_t cursor;
- SD_task_t file;
- char *name;
+
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) {
} else {
xbt_dynar_foreach(file->tasks_before,cpt1,depbefore) {
xbt_dynar_foreach(file->tasks_after,cpt2,depafter) {
- SD_task_t newfile = SD_task_create_comm_e2e(file->name,NULL,file->amount);
+ 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);
xbt_dynar_push(result,&newfile);
/* 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;
}
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);
+ xbt_dict_set(jobs,A_dax__job_id,current_job,NULL);
free(name);
xbt_dynar_push(result,¤t_job);
-
-}
-void STag_dax__child(void) {
-// INFO0("See <child>");
-}
-void STag_dax__parent(void) {
-// INFO0("See <parent>");
}
void STag_dax__uses(void) {
SD_task_t file;
}
}
}
+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 ETag_dax__child(void) {
+ current_child=NULL;
+}
+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) {
// INFO0("See </adag>");
}
current_job = NULL;
// INFO0("See </job>");
}
-void ETag_dax__child(void) {
-// INFO0("See </child>");
-}
void ETag_dax__parent(void) {
// INFO0("See </parent>");
}
