-/* $Id$ */
-
-/* Copyright (c) 2009 Cristian Rosa.
- 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 "private.h"
#include "xbt/log.h"
+#include "xbt/dict.h"
+
+/* Pimple to get an histogram of message sizes in the simulation */
+xbt_dict_t msg_sizes = NULL;
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_network, simix,
"Logging specific to SIMIX (network)");
* \param type The type of communication we are looking for (comm_send, comm_recv)
* \return The communication request if found, NULL otherwise.
*/
-smx_comm_t SIMIX_rdv_get_request(smx_rdv_t rdv, smx_comm_type_t type)
-{
+smx_comm_t SIMIX_rdv_get_request(smx_rdv_t rdv, smx_comm_type_t type) {
smx_comm_t comm = (smx_comm_t)xbt_fifo_get_item_content(
xbt_fifo_get_first_item(rdv->comm_fifo));
return comm;
}
- /* no relevant request found. Return NULL */
DEBUG0("Communication request not found");
return NULL;
}
comm->act = SIMIX_action_communicate(comm->src_proc->smx_host,
comm->dst_proc->smx_host, NULL,
comm->task_size, comm->rate);
+#ifdef HAVE_TRACING
+ TRACE_smx_action_communicate (comm->act, comm->src_proc);
+#endif
/* If any of the process is suspend, create the action but stop its execution,
it will be restarted when the sender process resume */
if(SIMIX_process_is_suspended(comm->src_proc) ||
SIMIX_process_is_suspended(comm->dst_proc)) {
- SIMIX_action_set_priority(comm->act, 0);
+ SIMIX_action_suspend(comm->act);
}
/* Add the communication as user data of the action */
* \param timeout The max amount of time to wait for the communication to finish
*
* Throws:
- * - host_error if peer failed
- * - timeout_error if communication reached the timeout specified
- * - network_error if network failed or peer issued a timeout
+ * - host_error if local peer failed
+ * - timeout_error if communication reached the timeout specified (either because of local peer or remote peer)
+ * - network_error if network failed or remote peer failed
*/
static inline void SIMIX_communication_wait_for_completion(smx_comm_t comm, double timeout)
{
SIMIX_sem_release_forever(comm->sem);
/* Check for errors other than timeouts (they are catched above) */
- if(!SIMIX_host_get_state(SIMIX_host_self())){
+ if (!SIMIX_host_get_state(SIMIX_host_self())){
if(comm->rdv)
SIMIX_rdv_remove(comm->rdv, comm);
SIMIX_communication_destroy(comm);
} else if (SIMIX_action_get_state(comm->act) == SURF_ACTION_FAILED){
SIMIX_communication_destroy(comm);
THROW0(network_error, 0, "Link failure");
+ } else if (!SIMIX_host_get_state(SIMIX_process_get_host(comm->dst_proc)) ||
+ !SIMIX_host_get_state(SIMIX_process_get_host(comm->src_proc))) {
+ /* We test both src&dst because we dunno who we are today, and we already tested myself above.
+ * So, at the end, we test the remote peer only
+ * Moreover, we have to test it because if the remote peer fails, the action comm->act is not done nor failed.
+ * In that case, we got awaken by the little endless actions created in the SIMIX_sem_acquire(comm->sem)
+ * at the beginning of this function. */
+ SIMIX_communication_destroy(comm);
+ THROW0(network_error, 0, "Remote peer failed");
+
}
+ SIMIX_communication_destroy(comm);
}
/**
return SIMIX_action_get_remains(comm->act);
}
+/******************************************************************************/
+/* SIMIX_network_copy_data callbacks */
+/******************************************************************************/
+static void (*SIMIX_network_copy_data_callback)(smx_comm_t, size_t) = &SIMIX_network_copy_pointer_callback;
+
+void SIMIX_network_set_copy_data_callback(void (*callback)(smx_comm_t, size_t)) {
+ SIMIX_network_copy_data_callback = callback;
+}
+
+void SIMIX_network_copy_pointer_callback(smx_comm_t comm, size_t buff_size) {
+ xbt_assert1((buff_size == sizeof(void*)), "Cannot copy %zu bytes: must be sizeof(void*)",buff_size);
+ *(void**)(comm->dst_buff) = comm->src_buff;
+}
+
+void SIMIX_network_copy_buffer_callback(smx_comm_t comm, size_t buff_size) {
+ memcpy(comm->dst_buff, comm->src_buff, buff_size);
+}
+
/**
* \brief Copy the communication data from the sender's buffer to the receiver's one
* \param comm The communication
*/
void SIMIX_network_copy_data(smx_comm_t comm)
{
+ size_t buff_size = comm->src_buff_size;
+
+ DEBUG6("Copying comm %p data from %s (%p) -> %s (%p) (%zu bytes)",
+ comm,
+ comm->src_proc->smx_host->name, comm->src_buff,
+ comm->dst_proc->smx_host->name, comm->dst_buff,
+ buff_size);
+
/* If there is no data to be copy then return */
if(!comm->src_buff || !comm->dst_buff)
return;
/* Copy at most dst_buff_size bytes of the message to receiver's buffer */
- size_t buff_size = comm->src_buff_size;
if (comm->dst_buff_size)
buff_size = MIN(buff_size,*(comm->dst_buff_size));
if(buff_size == 0)
return;
+ (*SIMIX_network_copy_data_callback)(comm, buff_size);
- INFO6("Copying comm %p data from %s (%p) -> %s (%p) (%zu bytes)",
- comm,
- comm->src_proc->smx_host->name, comm->src_buff,
- comm->dst_proc->smx_host->name, comm->dst_buff,
- buff_size);
+ /* pimple to display the message sizes */
+ {
+ if (msg_sizes == NULL)
+ msg_sizes = xbt_dict_new();
+ uintptr_t casted_size = comm->task_size;
+ uintptr_t amount = xbt_dicti_get(msg_sizes, casted_size);
+ amount++;
- memcpy(comm->dst_buff, comm->src_buff, buff_size);
+ xbt_dicti_set(msg_sizes,casted_size, amount);
+ }
+}
+#include "xbt.h"
+/* pimple to display the message sizes */
+void SIMIX_message_sizes_output(const char *filename) {
+ FILE * out = fopen(filename,"w");
+ xbt_assert1(out,"Cannot open file %s",filename);
+ uintptr_t key,data;
+ xbt_dict_cursor_t cursor;
+ xbt_dict_foreach(msg_sizes,cursor,key,data) {
+ fprintf(out,"%zu %zu\n",key,data);
+ }
+ fclose(out);
}
/**
XBT_INLINE void SIMIX_network_wait(smx_comm_t comm, double timeout) {
/* Wait for communication completion */
SIMIX_communication_wait_for_completion(comm, timeout);
-
- SIMIX_communication_destroy(comm);
}
/** @Returns whether the (asynchronous) communication is done yet or not */
SIMIX_communication_destroy(comm_finished);
THROW0(network_error, 0, "Link failure");
}
+ SIMIX_communication_destroy(comm_finished);
return found_comm;
}
