X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/a92d7b716f51a53dea7f59db8524d4add713b910..4bcfd40036f842e976d329cd0cee7349b8e0f4d6:/src/mc/mc_state.cpp diff --git a/src/mc/mc_state.cpp b/src/mc/mc_state.cpp index e399fa2979..7f8fa6be14 100644 --- a/src/mc/mc_state.cpp +++ b/src/mc/mc_state.cpp @@ -1,24 +1,15 @@ -/* Copyright (c) 2008-2017. The SimGrid Team. All rights reserved. */ +/* Copyright (c) 2008-2019. 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 +#include "src/mc/mc_comm_pattern.hpp" +#include "src/mc/mc_request.hpp" +#include "src/mc/mc_smx.hpp" +#include "src/mc/mc_state.hpp" #include -#include "xbt/log.h" -#include "xbt/sysdep.h" - -#include "src/simix/smx_private.h" -#include "src/mc/mc_state.h" -#include "src/mc/mc_request.h" -#include "src/mc/mc_private.h" -#include "src/mc/mc_comm_pattern.h" -#include "src/mc/mc_smx.h" -#include "src/mc/mc_xbt.hpp" -#include "src/mc/Transition.hpp" - using simgrid::mc::remote; XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_state, mc, "Logging specific to MC (state)"); @@ -26,14 +17,13 @@ XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_state, mc, "Logging specific to MC (state)"); namespace simgrid { namespace mc { -State::State(unsigned long state_number) +State::State(unsigned long state_number) : num(state_number) { this->internal_comm.clear(); std::memset(&this->internal_req, 0, sizeof(this->internal_req)); std::memset(&this->executed_req, 0, sizeof(this->executed_req)); actorStates.resize(MC_smx_get_maxpid()); - num = state_number; /* Stateful model checking */ if ((_sg_mc_checkpoint > 0 && (state_number % _sg_mc_checkpoint == 0)) || _sg_mc_termination) { system_state = simgrid::mc::take_snapshot(num); @@ -46,8 +36,7 @@ State::State(unsigned long state_number) std::size_t State::interleaveSize() const { - return boost::range::count_if(this->actorStates, - [](simgrid::mc::ProcessState const& p) { return p.isTodo(); }); + return boost::range::count_if(this->actorStates, [](simgrid::mc::ProcessState const& p) { return p.isTodo(); }); } Transition State::getTransition() const @@ -67,121 +56,111 @@ Transition State::getTransition() const * - which simcall can currently be executed (like a comm where the other partner is already known) * Once we returned the last enabled transition of a process, it is marked done. * - * Things can get muddled with the WAITANY and TESTANY simcalls, that are rewritten - * on the fly to a bunch of WAIT (resp TEST) transitions using the transition.argument - * field to remember what was the last returned sub-transition. + * Things can get muddled with the WAITANY and TESTANY simcalls, that are rewritten on the fly to a bunch of WAIT + * (resp TEST) transitions using the transition.argument field to remember what was the last returned sub-transition. */ -static inline smx_simcall_t MC_state_get_request_for_process( - simgrid::mc::State* state, smx_actor_t actor) +static inline smx_simcall_t MC_state_get_request_for_process(simgrid::mc::State* state, smx_actor_t actor) { /* reset the outgoing transition */ - simgrid::mc::ProcessState* procstate = &state->actorStates[actor->pid]; + simgrid::mc::ProcessState* procstate = &state->actorStates[actor->get_pid()]; state->transition.pid = -1; state->transition.argument = -1; state->executed_req.call = SIMCALL_NONE; - if (not procstate->isTodo()) - return nullptr; // Not considered by the checker algorithm if (not simgrid::mc::actor_is_enabled(actor)) return nullptr; // Not executable in the application smx_simcall_t req = nullptr; switch (actor->simcall.call) { - case SIMCALL_COMM_WAITANY: - state->transition.argument = -1; - while (procstate->times_considered < - read_length(mc_model_checker->process(), - remote(simcall_comm_waitany__get__comms(&actor->simcall)))) { - if (simgrid::mc::request_is_enabled_by_idx(&actor->simcall, - procstate->times_considered++)) { - state->transition.argument = procstate->times_considered - 1; - break; - } + case SIMCALL_COMM_WAITANY: + state->transition.argument = -1; + while (procstate->times_considered < simcall_comm_waitany__get__count(&actor->simcall)) { + if (simgrid::mc::request_is_enabled_by_idx(&actor->simcall, procstate->times_considered)) { + state->transition.argument = procstate->times_considered; + ++procstate->times_considered; + break; } - - if (procstate->times_considered >= - simgrid::mc::read_length(mc_model_checker->process(), - simgrid::mc::remote(simcall_comm_waitany__get__comms(&actor->simcall)))) - procstate->setDone(); - if (state->transition.argument != -1) - req = &actor->simcall; - break; - - case SIMCALL_COMM_TESTANY: { - unsigned start_count = procstate->times_considered; - state->transition.argument = -1; - while (procstate->times_considered < - simcall_comm_testany__get__count(&actor->simcall)) - if (simgrid::mc::request_is_enabled_by_idx(&actor->simcall, - procstate->times_considered++)) { - state->transition.argument = procstate->times_considered - 1; - break; - } - - if (procstate->times_considered >= - simcall_comm_testany__get__count(&actor->simcall)) - procstate->setDone(); - - if (state->transition.argument != -1 || start_count == 0) - req = &actor->simcall; - - break; + ++procstate->times_considered; } - case SIMCALL_COMM_WAIT: { - simgrid::mc::RemotePtr remote_act = - remote(static_cast(simcall_comm_wait__get__comm(&actor->simcall))); - simgrid::mc::Remote temp_act; - mc_model_checker->process().read(temp_act, remote_act); - simgrid::kernel::activity::CommImpl* act = temp_act.getBuffer(); - if (act->src_proc && act->dst_proc) - state->transition.argument = 0; - else if (act->src_proc == nullptr && act->type == SIMIX_COMM_READY - && act->detached == 1) - state->transition.argument = 0; - else - state->transition.argument = -1; + if (procstate->times_considered >= simcall_comm_waitany__get__count(&actor->simcall)) procstate->setDone(); + if (state->transition.argument != -1) req = &actor->simcall; - break; + break; + + case SIMCALL_COMM_TESTANY: { + unsigned start_count = procstate->times_considered; + state->transition.argument = -1; + while (procstate->times_considered < simcall_comm_testany__get__count(&actor->simcall)) { + if (simgrid::mc::request_is_enabled_by_idx(&actor->simcall, procstate->times_considered)) { + state->transition.argument = procstate->times_considered; + ++procstate->times_considered; + break; + } + ++procstate->times_considered; } - case SIMCALL_MC_RANDOM: { - int min_value = simcall_mc_random__get__min(&actor->simcall); - state->transition.argument = procstate->times_considered + min_value; - procstate->times_considered++; - if (state->transition.argument == simcall_mc_random__get__max(&actor->simcall)) - procstate->setDone(); + if (procstate->times_considered >= simcall_comm_testany__get__count(&actor->simcall)) + procstate->setDone(); + + if (state->transition.argument != -1 || start_count == 0) req = &actor->simcall; - break; - } - default: - procstate->setDone(); + break; + } + + case SIMCALL_COMM_WAIT: { + simgrid::mc::RemotePtr remote_act = + remote(static_cast(simcall_comm_wait__getraw__comm(&actor->simcall))); + simgrid::mc::Remote temp_act; + mc_model_checker->process().read(temp_act, remote_act); + simgrid::kernel::activity::CommImpl* act = temp_act.getBuffer(); + if (act->src_actor_.get() && act->dst_actor_.get()) state->transition.argument = 0; - req = &actor->simcall; - break; + else if (act->src_actor_.get() == nullptr && act->type_ == simgrid::kernel::activity::CommImpl::Type::READY && + act->detached()) + state->transition.argument = 0; + else + state->transition.argument = -1; + procstate->setDone(); + req = &actor->simcall; + break; + } + + case SIMCALL_MC_RANDOM: { + int min_value = simcall_mc_random__get__min(&actor->simcall); + state->transition.argument = procstate->times_considered + min_value; + procstate->times_considered++; + if (state->transition.argument == simcall_mc_random__get__max(&actor->simcall)) + procstate->setDone(); + req = &actor->simcall; + break; + } + + default: + procstate->setDone(); + state->transition.argument = 0; + req = &actor->simcall; + break; } if (not req) return nullptr; - state->transition.pid = actor->pid; + state->transition.pid = actor->get_pid(); state->executed_req = *req; // Fetch the data of the request and translate it: state->internal_req = *req; - /* The waitany and testany request are transformed into a wait or test request - * over the corresponding communication action so it can be treated later by - * the dependence function. */ + /* The waitany and testany request are transformed into a wait or test request over the corresponding communication + * action so it can be treated later by the dependence function. */ switch (req->call) { case SIMCALL_COMM_WAITANY: { state->internal_req.call = SIMCALL_COMM_WAIT; - smx_activity_t remote_comm; - read_element(mc_model_checker->process(), - &remote_comm, remote(simcall_comm_waitany__get__comms(req)), - state->transition.argument, sizeof(remote_comm)); - mc_model_checker->process().read(state->internal_comm, - remote(static_cast(remote_comm))); + simgrid::kernel::activity::CommImpl* remote_comm; + remote_comm = + mc_model_checker->process().read(remote(simcall_comm_waitany__get__comms(req) + state->transition.argument)); + mc_model_checker->process().read(state->internal_comm, remote(remote_comm)); simcall_comm_wait__set__comm(&state->internal_req, state->internal_comm.getBuffer()); simcall_comm_wait__set__timeout(&state->internal_req, 0); break; @@ -191,10 +170,9 @@ static inline smx_simcall_t MC_state_get_request_for_process( state->internal_req.call = SIMCALL_COMM_TEST; if (state->transition.argument > 0) { - smx_activity_t remote_comm = mc_model_checker->process().read( - remote(simcall_comm_testany__get__comms(req) + state->transition.argument)); - mc_model_checker->process().read(state->internal_comm, - remote(static_cast(remote_comm))); + simgrid::kernel::activity::CommImpl* remote_comm = + mc_model_checker->process().read(remote(simcall_comm_testany__get__comms(req) + state->transition.argument)); + mc_model_checker->process().read(state->internal_comm, remote(remote_comm)); } simcall_comm_test__set__comm(&state->internal_req, state->internal_comm.getBuffer()); @@ -202,15 +180,15 @@ static inline smx_simcall_t MC_state_get_request_for_process( break; case SIMCALL_COMM_WAIT: - mc_model_checker->process().read_bytes(&state->internal_comm , - sizeof(state->internal_comm), remote(simcall_comm_wait__get__comm(req))); + mc_model_checker->process().read_bytes(&state->internal_comm, sizeof(state->internal_comm), + remote(simcall_comm_wait__getraw__comm(req))); simcall_comm_wait__set__comm(&state->executed_req, state->internal_comm.getBuffer()); simcall_comm_wait__set__comm(&state->internal_req, state->internal_comm.getBuffer()); break; case SIMCALL_COMM_TEST: - mc_model_checker->process().read_bytes(&state->internal_comm, - sizeof(state->internal_comm), remote(simcall_comm_test__get__comm(req))); + mc_model_checker->process().read_bytes(&state->internal_comm, sizeof(state->internal_comm), + remote(simcall_comm_test__getraw__comm(req))); simcall_comm_test__set__comm(&state->executed_req, state->internal_comm.getBuffer()); simcall_comm_test__set__comm(&state->internal_req, state->internal_comm.getBuffer()); break; @@ -226,6 +204,10 @@ static inline smx_simcall_t MC_state_get_request_for_process( smx_simcall_t MC_state_get_request(simgrid::mc::State* state) { for (auto& actor : mc_model_checker->process().actors()) { + /* Only consider the actors that were marked as interleaving by the checker algorithm */ + if (not state->actorStates[actor.copy.getBuffer()->get_pid()].isTodo()) + continue; + smx_simcall_t res = MC_state_get_request_for_process(state, actor.copy.getBuffer()); if (res) return res;