-/* 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 "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;
+}
+
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);
}
+/** @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);
+ 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);
+ 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);
+ 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);
+ 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);
+
return result;
}
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);
+ 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);
+ }
+ }
+}
+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>");
}
void ETag_dax__job(void) {
-
-}
-void ETag_dax__child(void) {
-
+ current_job = NULL;
+// INFO0("See </job>");
}
void ETag_dax__parent(void) {
-
+// INFO0("See </parent>");
+}
+void ETag_dax__uses(void) {
+// INFO0("See </uses>");
}
