-/* Copyright (c) 2017-2018. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2017-2021. 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 "smpi_host.hpp"
+#include "private.hpp"
#include "simgrid/s4u/VirtualMachine.hpp"
+#include "smpi/smpi.h"
#include "smpi_utils.hpp"
#include "xbt/config.hpp"
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_host, smpi, "Logging specific to SMPI (host)");
+/* save user's cost callbacks for SMPI operations */
+static std::unordered_map<SmpiOperation, SmpiOpCostCb> cost_cbs;
+
+void smpi_register_op_cost_callback(SmpiOperation op, const SmpiOpCostCb& cb)
+{
+ cost_cbs[op] = cb;
+}
+
+void smpi_cleanup_op_cost_callback()
+{
+ cost_cbs.clear();
+}
+
namespace simgrid {
namespace smpi {
-simgrid::xbt::Extension<simgrid::s4u::Host, Host> Host::EXTENSION_ID;
+xbt::Extension<s4u::Host, smpi::Host> Host::EXTENSION_ID;
-double Host::orecv(size_t size)
+double Host::orecv(size_t size, s4u::Host* src, s4u::Host* dst)
{
+ /* return user's callback if available */
+ auto it = cost_cbs.find(SmpiOperation::RECV);
+ if (it != cost_cbs.end())
+ return it->second(size, src, dst);
+
+ /* fallback to smpi/or config */
double current = orecv_parsed_values.empty() ? 0.0 : orecv_parsed_values.front().values[0] +
orecv_parsed_values.front().values[1] * size;
return current;
}
-double Host::osend(size_t size)
+double Host::osend(size_t size, s4u::Host* src, s4u::Host* dst)
{
+ /* return user's callback if available */
+ auto it = cost_cbs.find(SmpiOperation::SEND);
+ if (it != cost_cbs.end())
+ return it->second(size, src, dst);
+
+ /* fallback to smpi/os config */
double current =
osend_parsed_values.empty() ? 0.0 : osend_parsed_values[0].values[0] + osend_parsed_values[0].values[1] * size;
- // Iterate over all the sections that were specified and find the right
- // value. (fact.factor represents the interval sizes; we want to find the
- // section that has fact.factor <= size and no other such fact.factor <= size)
+ // Iterate over all the sections that were specified and find the right value. (fact.factor represents the interval
+ // sizes; we want to find the section that has fact.factor <= size and no other such fact.factor <= size)
// Note: parse_factor() (used before) already sorts the vector we iterate over!
for (auto const& fact : osend_parsed_values) {
if (size <= fact.factor) { // Values already too large, use the previously computed value of current!
return current;
}
-double Host::oisend(size_t size)
+double Host::oisend(size_t size, s4u::Host* src, s4u::Host* dst)
{
+ /* return user's callback if available */
+ auto it = cost_cbs.find(SmpiOperation::ISEND);
+ if (it != cost_cbs.end())
+ return it->second(size, src, dst);
+
+ /* fallback to smpi/ois config */
double current =
oisend_parsed_values.empty() ? 0.0 : oisend_parsed_values[0].values[0] + oisend_parsed_values[0].values[1] * size;
return current;
}
-Host::Host(simgrid::s4u::Host *ptr) : host(ptr)
+void Host::check_factor_configs(const std::string& op) const
{
- if (not Host::EXTENSION_ID.valid())
- Host::EXTENSION_ID = simgrid::s4u::Host::extension_create<Host>();
+ static const std::unordered_map<std::string, SmpiOperation> name_to_op_enum{
+ {"smpi/or", SmpiOperation::RECV}, {"smpi/os", SmpiOperation::SEND}, {"smpi/ois", SmpiOperation::ISEND}};
+ if (cost_cbs.find(name_to_op_enum.at(op)) != cost_cbs.end() &&
+ (host->get_property(op) || not config::is_default(op.c_str()))) {
+ XBT_WARN("SMPI (host: %s): mismatch cost functions for %s. Only user's callback will be used.", host->get_cname(),
+ op.c_str());
+ }
+}
+Host::Host(s4u::Host* ptr) : host(ptr)
+{
+ if (not smpi::Host::EXTENSION_ID.valid())
+ smpi::Host::EXTENSION_ID = s4u::Host::extension_create<Host>();
+
+ check_factor_configs("smpi/or");
const char* orecv_string = host->get_property("smpi/or");
if (orecv_string != nullptr) {
- orecv_parsed_values = parse_factor(orecv_string);
+ orecv_parsed_values = simgrid::smpi::utils::parse_factor(orecv_string);
} else {
- orecv_parsed_values = parse_factor(simgrid::config::get_value<std::string>("smpi/or"));
+ orecv_parsed_values = simgrid::smpi::utils::parse_factor(config::get_value<std::string>("smpi/or"));
}
+ check_factor_configs("smpi/os");
const char* osend_string = host->get_property("smpi/os");
if (osend_string != nullptr) {
- osend_parsed_values = parse_factor(osend_string);
+ osend_parsed_values = simgrid::smpi::utils::parse_factor(osend_string);
} else {
- osend_parsed_values = parse_factor(simgrid::config::get_value<std::string>("smpi/os"));
+ osend_parsed_values = simgrid::smpi::utils::parse_factor(config::get_value<std::string>("smpi/os"));
}
+ check_factor_configs("smpi/ois");
const char* oisend_string = host->get_property("smpi/ois");
if (oisend_string != nullptr) {
- oisend_parsed_values = parse_factor(oisend_string);
+ oisend_parsed_values = simgrid::smpi::utils::parse_factor(oisend_string);
} else {
- oisend_parsed_values = parse_factor(simgrid::config::get_value<std::string>("smpi/ois"));
+ oisend_parsed_values = simgrid::smpi::utils::parse_factor(config::get_value<std::string>("smpi/ois"));
}
}
-Host::~Host()=default;
-}
-}
+} // namespace smpi
+} // namespace simgrid
