- /* Iterate over all children and parents being MXN_1D_BLOCK to say where I am located (and start them if runnable) */
- if (task->kind == SD_TASK_COMP_PAR_AMDAHL) {
- XBT_VERB("Schedule computation task %s on %d workstations. %.f flops will be distributed following Amdahl's Law",
- SD_task_get_name(task), task->host_count, task->flops_amount[0]);
- for (std::set<SD_task_t>::iterator it=task->inputs->begin(); it!=task->inputs->end(); ++it){
- SD_task_t input = *it;
- if (!input->host_list){
- XBT_VERB("Sender side of Task %s is not scheduled yet", SD_task_get_name(input));
- input->host_list = xbt_new0(sg_host_t, count);
- input->host_count = count;
- XBT_VERB("Fill the workstation list with list of Task '%s'", SD_task_get_name(task));
- for (i=0;i<count;i++)
- input->host_list[i] = task->host_list[i];
- } else {
- XBT_VERB("Build communication matrix for task '%s'", SD_task_get_name(input));
- int src_nb, dst_nb;
- double src_start, src_end, dst_start, dst_end;
- src_nb = input->host_count;
- dst_nb = count;
- input->host_list = static_cast<sg_host_t*>(xbt_realloc(input->host_list, (input->host_count+count)*sizeof(sg_host_t)));
- for(i=0; i<count; i++)
- input->host_list[input->host_count+i] = task->host_list[i];
-
- input->host_count += count;
- xbt_free(input->flops_amount);
- xbt_free(input->bytes_amount);
- input->flops_amount = xbt_new0(double, input->host_count);
- input->bytes_amount = xbt_new0(double, input->host_count* input->host_count);
-
- for(i=0;i<src_nb;i++){
- src_start = i*input->amount/src_nb;
- src_end = src_start + input->amount/src_nb;
- for(j=0; j<dst_nb; j++){
- dst_start = j*input->amount/dst_nb;
- dst_end = dst_start + input->amount/dst_nb;
- XBT_VERB("(%s->%s): (%.2f, %.2f)-> (%.2f, %.2f)", sg_host_get_name(input->host_list[i]),
- sg_host_get_name(input->host_list[src_nb+j]), src_start, src_end, dst_start, dst_end);
- if ((src_end <= dst_start) || (dst_end <= src_start)) {
- input->bytes_amount[i*(src_nb+dst_nb)+src_nb+j]=0.0;
- } else {
- input->bytes_amount[i*(src_nb+dst_nb)+src_nb+j] = MIN(src_end, dst_end) - MAX(src_start, dst_start);
- }
- XBT_VERB("==> %.2f", input->bytes_amount[i*(src_nb+dst_nb)+src_nb+j]);
- }
- }
-
- if (SD_task_get_state(input)< SD_SCHEDULED) {
- SD_task_do_schedule(input);
- XBT_VERB ("Auto-Schedule redistribution task %s. Send %.f bytes from %d hosts to %d hosts.",
- SD_task_get_name(input),input->amount, src_nb, dst_nb);
- }
- }
- }