From: Martin Quinson Date: Tue, 15 Feb 2022 08:42:55 +0000 (+0100) Subject: CommDet shall become an extension of the SafetyChecker X-Git-Tag: v3.31~403 X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/162424b0ac640baa56b0ca9bc158ef9743f0c4ac CommDet shall become an extension of the SafetyChecker --- diff --git a/MANIFEST.in b/MANIFEST.in index 19701b642a..69f054611a 100644 --- a/MANIFEST.in +++ b/MANIFEST.in @@ -2377,7 +2377,6 @@ include src/mc/inspect/mc_unw_vmread.cpp include src/mc/mc_base.cpp include src/mc/mc_base.hpp include src/mc/mc_client_api.cpp -include src/mc/mc_comm_pattern.hpp include src/mc/mc_config.cpp include src/mc/mc_config.hpp include src/mc/mc_exit.hpp diff --git a/src/mc/api.cpp b/src/mc/api.cpp index a888c11ef9..8bf2519c73 100644 --- a/src/mc/api.cpp +++ b/src/mc/api.cpp @@ -11,7 +11,6 @@ #include "src/mc/Session.hpp" #include "src/mc/checker/Checker.hpp" #include "src/mc/mc_base.hpp" -#include "src/mc/mc_comm_pattern.hpp" #include "src/mc/mc_exit.hpp" #include "src/mc/mc_pattern.hpp" #include "src/mc/mc_private.hpp" diff --git a/src/mc/api/State.hpp b/src/mc/api/State.hpp index 7d47e41bdf..dad59481d4 100644 --- a/src/mc/api/State.hpp +++ b/src/mc/api/State.hpp @@ -7,7 +7,7 @@ #define SIMGRID_MC_STATE_HPP #include "src/mc/api/Transition.hpp" -#include "src/mc/mc_comm_pattern.hpp" +#include "src/mc/mc_pattern.hpp" #include "src/mc/sosp/Snapshot.hpp" namespace simgrid { diff --git a/src/mc/checker/Checker.hpp b/src/mc/checker/Checker.hpp index e43676ec00..542ba9688d 100644 --- a/src/mc/checker/Checker.hpp +++ b/src/mc/checker/Checker.hpp @@ -25,7 +25,7 @@ namespace mc { * `Session` interface (but currently the `Session` interface does not * have all the necessary features). */ // abstract -class Checker { +class Checker : public xbt::Extendable { Session* session_; public: diff --git a/src/mc/checker/CommunicationDeterminismChecker.cpp b/src/mc/checker/CommunicationDeterminismChecker.cpp index 8fc0415868..9362eb1b46 100644 --- a/src/mc/checker/CommunicationDeterminismChecker.cpp +++ b/src/mc/checker/CommunicationDeterminismChecker.cpp @@ -16,25 +16,75 @@ using api = simgrid::mc::Api; XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_comm_determinism, mc, "Logging specific to MC communication determinism detection"); -/********** Global variables **********/ +namespace simgrid { +namespace mc { -std::vector initial_communications_pattern; -std::vector> incomplete_communications_pattern; +enum class CallType { NONE, SEND, RECV, WAIT, WAITANY }; +enum class CommPatternDifference { NONE, TYPE, RDV, TAG, SRC_PROC, DST_PROC, DATA_SIZE, DATA }; -/********** Static functions ***********/ +struct PatternCommunicationList { + unsigned int index_comm = 0; + std::vector> list; +}; -namespace simgrid { -namespace mc { +static inline simgrid::mc::CallType MC_get_call_type(const s_smx_simcall* req) +{ + using simgrid::mc::CallType; + using simgrid::simix::Simcall; + switch (req->call_) { + case Simcall::COMM_ISEND: + return CallType::SEND; + case Simcall::COMM_IRECV: + return CallType::RECV; + case Simcall::COMM_WAIT: + return CallType::WAIT; + case Simcall::COMM_WAITANY: + return CallType::WAITANY; + default: + return CallType::NONE; + } +} + +/********** Checker extension **********/ + +struct CommDetExtension { + static simgrid::xbt::Extension EXTENSION_ID; + + CommDetExtension() + { + const unsigned long maxpid = api::get().get_maxpid(); + + initial_communications_pattern.resize(maxpid); + incomplete_communications_pattern.resize(maxpid); + } + + std::vector initial_communications_pattern; + std::vector> incomplete_communications_pattern; + + bool initial_communications_pattern_done = false; + bool recv_deterministic = true; + bool send_deterministic = true; + std::string send_diff; + std::string recv_diff; + + void restore_communications_pattern(simgrid::mc::State* state); + void deterministic_comm_pattern(aid_t process, const PatternCommunication* comm, bool backtracking); + void get_comm_pattern(smx_simcall_t request, CallType call_type, bool backtracking); + void complete_comm_pattern(RemotePtr const& comm_addr, aid_t issuer, bool backtracking); + void handle_comm_pattern(simgrid::mc::CallType call_type, smx_simcall_t req, int value, bool backtracking); +}; +simgrid::xbt::Extension CommDetExtension::EXTENSION_ID; +/********** State Extension ***********/ class StateCommDet { - // State* state_; + CommDetExtension* checker_; public: std::vector> incomplete_comm_pattern_; std::vector communication_indices_; static simgrid::xbt::Extension EXTENSION_ID; - explicit StateCommDet(State* /* ptr*/) //: state_(ptr) + explicit StateCommDet(CommDetExtension* checker) : checker_(checker) { copy_incomplete_comm_pattern(); copy_index_comm_pattern(); @@ -46,7 +96,7 @@ public: const unsigned long maxpid = api::get().get_maxpid(); for (unsigned long i = 0; i < maxpid; i++) { std::vector res; - for (auto const& comm : incomplete_communications_pattern[i]) + for (auto const& comm : checker_->incomplete_communications_pattern[i]) res.push_back(comm->dup()); incomplete_comm_pattern_.push_back(std::move(res)); } @@ -55,16 +105,12 @@ public: void copy_index_comm_pattern() { communication_indices_.clear(); - for (auto const& list_process_comm : initial_communications_pattern) + for (auto const& list_process_comm : checker_->initial_communications_pattern) this->communication_indices_.push_back(list_process_comm.index_comm); } }; - simgrid::xbt::Extension StateCommDet::EXTENSION_ID; -} // namespace mc -} // namespace simgrid - static simgrid::mc::CommPatternDifference compare_comm_pattern(const simgrid::mc::PatternCommunication* comm1, const simgrid::mc::PatternCommunication* comm2) { @@ -96,7 +142,7 @@ static void patterns_copy(std::vector& dest, } } -static void restore_communications_pattern(simgrid::mc::State* state) +void CommDetExtension::restore_communications_pattern(simgrid::mc::State* state) { for (size_t i = 0; i < initial_communications_pattern.size(); i++) initial_communications_pattern[i].index_comm = @@ -108,42 +154,42 @@ static void restore_communications_pattern(simgrid::mc::State* state) state->extension()->incomplete_comm_pattern_[i]); } -static char* print_determinism_result(simgrid::mc::CommPatternDifference diff, aid_t process, - const simgrid::mc::PatternCommunication* comm, unsigned int cursor) +std::string print_determinism_result(simgrid::mc::CommPatternDifference diff, aid_t process, + const simgrid::mc::PatternCommunication* comm, unsigned int cursor) { - char* type; - char* res; + std::string type; + std::string res; if (comm->type == simgrid::mc::PatternCommunicationType::send) - type = bprintf("The send communications pattern of the process %ld is different!", process - 1); + type = xbt::string_printf("The send communications pattern of the process %ld is different!", process - 1); else - type = bprintf("The recv communications pattern of the process %ld is different!", process - 1); + type = xbt::string_printf("The recv communications pattern of the process %ld is different!", process - 1); using simgrid::mc::CommPatternDifference; switch (diff) { case CommPatternDifference::TYPE: - res = bprintf("%s Different type for communication #%u", type, cursor); + res = xbt::string_printf("%s Different type for communication #%u", type.c_str(), cursor); break; case CommPatternDifference::RDV: - res = bprintf("%s Different rdv for communication #%u", type, cursor); + res = xbt::string_printf("%s Different rdv for communication #%u", type.c_str(), cursor); break; case CommPatternDifference::TAG: - res = bprintf("%s Different tag for communication #%u", type, cursor); + res = xbt::string_printf("%s Different tag for communication #%u", type.c_str(), cursor); break; case CommPatternDifference::SRC_PROC: - res = bprintf("%s Different source for communication #%u", type, cursor); + res = xbt::string_printf("%s Different source for communication #%u", type.c_str(), cursor); break; case CommPatternDifference::DST_PROC: - res = bprintf("%s Different destination for communication #%u", type, cursor); + res = xbt::string_printf("%s Different destination for communication #%u", type.c_str(), cursor); break; case CommPatternDifference::DATA_SIZE: - res = bprintf("%s Different data size for communication #%u", type, cursor); + res = xbt::string_printf("%s Different data size for communication #%u", type.c_str(), cursor); break; case CommPatternDifference::DATA: - res = bprintf("%s Different data for communication #%u", type, cursor); + res = xbt::string_printf("%s Different data for communication #%u", type.c_str(), cursor); break; default: - res = nullptr; + res = ""; break; } @@ -163,11 +209,7 @@ static void update_comm_pattern(simgrid::mc::PatternCommunication* comm_pattern, } } -namespace simgrid { -namespace mc { - -void CommunicationDeterminismChecker::deterministic_comm_pattern(aid_t process, const PatternCommunication* comm, - bool backtracking) +void CommDetExtension::deterministic_comm_pattern(aid_t process, const PatternCommunication* comm, bool backtracking) { if (not backtracking) { PatternCommunicationList& list = initial_communications_pattern[process]; @@ -175,39 +217,27 @@ void CommunicationDeterminismChecker::deterministic_comm_pattern(aid_t process, if (diff != CommPatternDifference::NONE) { if (comm->type == PatternCommunicationType::send) { - this->send_deterministic = false; - if (this->send_diff != nullptr) - xbt_free(this->send_diff); - this->send_diff = print_determinism_result(diff, process, comm, list.index_comm + 1); + send_deterministic = false; + send_diff = print_determinism_result(diff, process, comm, list.index_comm + 1); } else { - this->recv_deterministic = false; - if (this->recv_diff != nullptr) - xbt_free(this->recv_diff); - this->recv_diff = print_determinism_result(diff, process, comm, list.index_comm + 1); + recv_deterministic = false; + recv_diff = print_determinism_result(diff, process, comm, list.index_comm + 1); } - if (_sg_mc_send_determinism && not this->send_deterministic) { + if (_sg_mc_send_determinism && not send_deterministic) { XBT_INFO("*********************************************************"); XBT_INFO("***** Non-send-deterministic communications pattern *****"); XBT_INFO("*********************************************************"); - XBT_INFO("%s", this->send_diff); - xbt_free(this->send_diff); - this->send_diff = nullptr; + XBT_INFO("%s", send_diff.c_str()); api::get().log_state(); api::get().mc_exit(SIMGRID_MC_EXIT_NON_DETERMINISM); - } else if (_sg_mc_comms_determinism && (not this->send_deterministic && not this->recv_deterministic)) { + } else if (_sg_mc_comms_determinism && (not send_deterministic && not recv_deterministic)) { XBT_INFO("****************************************************"); XBT_INFO("***** Non-deterministic communications pattern *****"); XBT_INFO("****************************************************"); - if (this->send_diff) { - XBT_INFO("%s", this->send_diff); - xbt_free(this->send_diff); - this->send_diff = nullptr; - } - if (this->recv_diff) { - XBT_INFO("%s", this->recv_diff); - xbt_free(this->recv_diff); - this->recv_diff = nullptr; - } + if (not send_diff.empty()) + XBT_INFO("%s", send_diff.c_str()); + if (not recv_diff.empty()) + XBT_INFO("%s", recv_diff.c_str()); api::get().log_state(); api::get().mc_exit(SIMGRID_MC_EXIT_NON_DETERMINISM); } @@ -217,7 +247,7 @@ void CommunicationDeterminismChecker::deterministic_comm_pattern(aid_t process, /********** Non Static functions ***********/ -void CommunicationDeterminismChecker::get_comm_pattern(smx_simcall_t request, CallType call_type, bool backtracking) +void CommDetExtension::get_comm_pattern(smx_simcall_t request, CallType call_type, bool backtracking) { const smx_actor_t issuer = api::get().simcall_get_issuer(request); const mc::PatternCommunicationList& initial_pattern = initial_communications_pattern[issuer->get_pid()]; @@ -241,9 +271,9 @@ void CommunicationDeterminismChecker::get_comm_pattern(smx_simcall_t request, Ca #if HAVE_SMPI auto send_detached = api::get().check_send_request_detached(request); if (send_detached) { - if (this->initial_communications_pattern_done) { + if (initial_communications_pattern_done) { /* Evaluate comm determinism */ - this->deterministic_comm_pattern(pattern->src_proc, pattern.get(), backtracking); + deterministic_comm_pattern(pattern->src_proc, pattern.get(), backtracking); initial_communications_pattern[pattern->src_proc].index_comm++; } else { /* Store comm pattern */ @@ -268,8 +298,8 @@ void CommunicationDeterminismChecker::get_comm_pattern(smx_simcall_t request, Ca incomplete_communications_pattern[issuer->get_pid()].push_back(pattern.release()); } -void CommunicationDeterminismChecker::complete_comm_pattern(RemotePtr const& comm_addr, - aid_t issuer, bool backtracking) +void CommDetExtension::complete_comm_pattern(RemotePtr const& comm_addr, aid_t issuer, + bool backtracking) { /* Complete comm pattern */ std::vector& incomplete_pattern = incomplete_communications_pattern[issuer]; @@ -284,9 +314,9 @@ void CommunicationDeterminismChecker::complete_comm_pattern(RemotePtrinitial_communications_pattern_done) { + if (initial_communications_pattern_done) { /* Evaluate comm determinism */ - this->deterministic_comm_pattern(issuer, comm_pattern.get(), backtracking); + deterministic_comm_pattern(issuer, comm_pattern.get(), backtracking); initial_communications_pattern[issuer].index_comm++; } else { /* Store comm pattern */ @@ -296,6 +326,7 @@ void CommunicationDeterminismChecker::complete_comm_pattern(RemotePtr(); StateCommDet::EXTENSION_ID = simgrid::mc::State::extension_create(); } @@ -320,36 +351,32 @@ std::vector CommunicationDeterminismChecker::get_textual_trace() // void CommunicationDeterminismChecker::log_state() // override { if (_sg_mc_comms_determinism) { - if (this->send_deterministic && not this->recv_deterministic) { + if (extension()->send_deterministic && not extension()->recv_deterministic) { XBT_INFO("*******************************************************"); XBT_INFO("**** Only-send-deterministic communication pattern ****"); XBT_INFO("*******************************************************"); - XBT_INFO("%s", this->recv_diff); + XBT_INFO("%s", extension()->recv_diff.c_str()); } - if (not this->send_deterministic && this->recv_deterministic) { + if (not extension()->send_deterministic && extension()->recv_deterministic) { XBT_INFO("*******************************************************"); XBT_INFO("**** Only-recv-deterministic communication pattern ****"); XBT_INFO("*******************************************************"); - XBT_INFO("%s", this->send_diff); + XBT_INFO("%s", extension()->send_diff.c_str()); } } XBT_INFO("Expanded states = %ld", State::get_expanded_states()); XBT_INFO("Visited states = %lu", api::get().mc_get_visited_states()); XBT_INFO("Executed transitions = %lu", Transition::get_executed_transitions()); - XBT_INFO("Send-deterministic : %s", this->send_deterministic ? "Yes" : "No"); + XBT_INFO("Send-deterministic : %s", extension()->send_deterministic ? "Yes" : "No"); if (_sg_mc_comms_determinism) - XBT_INFO("Recv-deterministic : %s", this->recv_deterministic ? "Yes" : "No"); + XBT_INFO("Recv-deterministic : %s", extension()->recv_deterministic ? "Yes" : "No"); } void CommunicationDeterminismChecker::prepare() { - const unsigned long maxpid = api::get().get_maxpid(); - - initial_communications_pattern.resize(maxpid); - incomplete_communications_pattern.resize(maxpid); - auto initial_state = std::make_unique(); - initial_state->extension_set(new StateCommDet(initial_state.get())); + extension_set(new CommDetExtension()); + initial_state->extension_set(new StateCommDet(extension())); XBT_DEBUG("********* Start communication determinism verification *********"); @@ -363,36 +390,26 @@ void CommunicationDeterminismChecker::prepare() stack_.push_back(std::move(initial_state)); } -static inline bool all_communications_are_finished() -{ - const unsigned long maxpid = api::get().get_maxpid(); - for (size_t current_actor = 1; current_actor < maxpid; current_actor++) { - if (not incomplete_communications_pattern[current_actor].empty()) { - XBT_DEBUG("Some communications are not finished, cannot stop the exploration! State not visited."); - return false; - } - } - return true; -} - void CommunicationDeterminismChecker::restoreState() { + auto extension = this->extension(); + /* Intermediate backtracking */ State* last_state = stack_.back().get(); if (last_state->system_state_) { api::get().restore_state(last_state->system_state_); - restore_communications_pattern(last_state); + extension->restore_communications_pattern(last_state); return; } get_session().restore_initial_state(); const unsigned long maxpid = api::get().get_maxpid(); - assert(maxpid == incomplete_communications_pattern.size()); - assert(maxpid == initial_communications_pattern.size()); + assert(maxpid == extension->incomplete_communications_pattern.size()); + assert(maxpid == extension->initial_communications_pattern.size()); for (unsigned long j = 0; j < maxpid; j++) { - incomplete_communications_pattern[j].clear(); - initial_communications_pattern[j].index_comm = 0; + extension->incomplete_communications_pattern[j].clear(); + extension->initial_communications_pattern[j].index_comm = 0; } /* Traverse the stack from the state at position start and re-execute the transitions */ @@ -413,15 +430,15 @@ void CommunicationDeterminismChecker::restoreState() /* TODO : handle test and testany simcalls */ CallType call = MC_get_call_type(req); state->get_transition()->replay(); - handle_comm_pattern(call, req, req_num, true); + extension->handle_comm_pattern(call, req, req_num, true); /* Update statistics */ api::get().mc_inc_visited_states(); } } -void CommunicationDeterminismChecker::handle_comm_pattern(simgrid::mc::CallType call_type, smx_simcall_t req, int value, - bool backtracking) +void CommDetExtension::handle_comm_pattern(simgrid::mc::CallType call_type, smx_simcall_t req, int value, + bool backtracking) { using simgrid::mc::CallType; switch(call_type) { @@ -448,7 +465,10 @@ void CommunicationDeterminismChecker::handle_comm_pattern(simgrid::mc::CallType void CommunicationDeterminismChecker::real_run() { + auto extension = this->extension(); + std::unique_ptr visited_state = nullptr; + const unsigned long maxpid = api::get().get_maxpid(); while (not stack_.empty()) { /* Get current state */ @@ -482,16 +502,24 @@ void CommunicationDeterminismChecker::real_run() if (_sg_mc_comms_determinism || _sg_mc_send_determinism) call = MC_get_call_type(req); - handle_comm_pattern(call, req, req_num, false); + extension->handle_comm_pattern(call, req, req_num, false); /* Create the new expanded state */ auto next_state = std::make_unique(); - next_state->extension_set(new StateCommDet(next_state.get())); + next_state->extension_set(new StateCommDet(extension)); + + bool all_communications_are_finished = true; + for (size_t current_actor = 1; all_communications_are_finished && current_actor < maxpid; current_actor++) { + if (not extension->incomplete_communications_pattern[current_actor].empty()) { + XBT_DEBUG("Some communications are not finished, cannot stop the exploration! State not visited."); + all_communications_are_finished = false; + } + } /* If comm determinism verification, we cannot stop the exploration if some communications are not finished (at * least, data are transferred). These communications are incomplete and they cannot be analyzed and compared * with the initial pattern. */ - bool compare_snapshots = this->initial_communications_pattern_done && all_communications_are_finished(); + bool compare_snapshots = extension->initial_communications_pattern_done && all_communications_are_finished; if (_sg_mc_max_visited_states != 0) visited_state = visited_states_.addVisitedState(next_state->num_, next_state.get(), compare_snapshots); @@ -523,7 +551,7 @@ void CommunicationDeterminismChecker::real_run() else XBT_DEBUG("There are no more processes to interleave. (depth %zu)", stack_.size()); - this->initial_communications_pattern_done = true; + extension->initial_communications_pattern_done = true; /* Trash the current state, no longer needed */ XBT_DEBUG("Delete state %ld at depth %zu", cur_state->num_, stack_.size()); diff --git a/src/mc/checker/CommunicationDeterminismChecker.hpp b/src/mc/checker/CommunicationDeterminismChecker.hpp index 0a496ed513..3ac6c2a66f 100644 --- a/src/mc/checker/CommunicationDeterminismChecker.hpp +++ b/src/mc/checker/CommunicationDeterminismChecker.hpp @@ -5,7 +5,6 @@ #include "src/mc/VisitedState.hpp" #include "src/mc/checker/Checker.hpp" -#include "src/mc/mc_comm_pattern.hpp" #include #include @@ -28,25 +27,11 @@ private: void prepare(); void real_run(); void log_state() override; - void deterministic_comm_pattern(aid_t process, const PatternCommunication* comm, bool backtracking); void restoreState(); - void handle_comm_pattern(simgrid::mc::CallType call_type, smx_simcall_t req, int value, bool backtracking); -public: - // These are used by functions which should be moved in CommunicationDeterminismChecker: - void get_comm_pattern(smx_simcall_t request, CallType call_type, bool backtracking); - void complete_comm_pattern(RemotePtr const& comm_addr, aid_t issuer, bool backtracking); - -private: /** Stack representing the position in the exploration graph */ std::list> stack_; VisitedStates visited_states_; - - bool initial_communications_pattern_done = false; - bool recv_deterministic = true; - bool send_deterministic = true; - char *send_diff = nullptr; - char *recv_diff = nullptr; }; } // namespace mc } // namespace simgrid diff --git a/src/mc/mc_comm_pattern.hpp b/src/mc/mc_comm_pattern.hpp deleted file mode 100644 index ea8eb31641..0000000000 --- a/src/mc/mc_comm_pattern.hpp +++ /dev/null @@ -1,62 +0,0 @@ -/* Copyright (c) 2007-2022. 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. */ - -#ifndef SIMGRID_MC_COMM_PATTERN_H -#define SIMGRID_MC_COMM_PATTERN_H - -#include -#include "src/mc/mc_pattern.hpp" - -namespace simgrid { -namespace mc { - -enum class CallType { - NONE, - SEND, - RECV, - WAIT, - WAITANY, -}; - -enum class CommPatternDifference { - NONE, - TYPE, - RDV, - TAG, - SRC_PROC, - DST_PROC, - DATA_SIZE, - DATA, -}; - -struct PatternCommunicationList { - unsigned int index_comm = 0; - std::vector> list; -}; -} // namespace mc -} // namespace simgrid - -extern XBT_PRIVATE std::vector initial_communications_pattern; -extern XBT_PRIVATE std::vector> incomplete_communications_pattern; - -static inline simgrid::mc::CallType MC_get_call_type(const s_smx_simcall* req) -{ - using simgrid::mc::CallType; - using simgrid::simix::Simcall; - switch (req->call_) { - case Simcall::COMM_ISEND: - return CallType::SEND; - case Simcall::COMM_IRECV: - return CallType::RECV; - case Simcall::COMM_WAIT: - return CallType::WAIT; - case Simcall::COMM_WAITANY: - return CallType::WAITANY; - default: - return CallType::NONE; - } -} - -#endif diff --git a/src/mc/mc_global.cpp b/src/mc/mc_global.cpp index 423dd14d49..51c4074fed 100644 --- a/src/mc/mc_global.cpp +++ b/src/mc/mc_global.cpp @@ -10,7 +10,6 @@ #include "src/mc/Session.hpp" #include "src/mc/checker/Checker.hpp" #include "src/mc/inspect/mc_unw.hpp" -#include "src/mc/mc_comm_pattern.hpp" #include "src/mc/mc_config.hpp" #include "src/mc/mc_private.hpp" #include "src/mc/mc_safety.hpp" diff --git a/tools/cmake/DefinePackages.cmake b/tools/cmake/DefinePackages.cmake index 3ca374d45e..04762e37e5 100644 --- a/tools/cmake/DefinePackages.cmake +++ b/tools/cmake/DefinePackages.cmake @@ -611,7 +611,6 @@ set(MC_SRC src/mc/mc_forward.hpp src/mc/Session.cpp src/mc/Session.hpp - src/mc/mc_comm_pattern.hpp src/mc/mc_pattern.hpp src/mc/compare.cpp src/mc/api.cpp