X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/e717aac07363de43fcc74fa033767bb3c4acd25c..1dc3cb7c2d85db5b01f325d54e3f008f5ef6619f:/src/mc/mc_api.cpp diff --git a/src/mc/mc_api.cpp b/src/mc/mc_api.cpp index 8e61bbe0e2..21e90ee842 100644 --- a/src/mc/mc_api.cpp +++ b/src/mc/mc_api.cpp @@ -1,10 +1,13 @@ #include "mc_api.hpp" +#include "src/kernel/activity/MailboxImpl.hpp" #include "src/mc/Session.hpp" +#include "src/mc/mc_comm_pattern.hpp" #include "src/mc/mc_private.hpp" +#include "src/mc/mc_record.hpp" #include "src/mc/mc_smx.hpp" #include "src/mc/remote/RemoteSimulation.hpp" -#include "src/mc/mc_record.hpp" +#include "src/mc/mc_pattern.hpp" #include #include @@ -14,6 +17,160 @@ XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_api, mc, "Logging specific to MC Fasade APIs namespace simgrid { namespace mc { +/* Search an enabled transition for the given process. + * + * This can be seen as an iterator returning the next transition of the process. + * + * We only consider the processes that are both + * - marked "to be interleaved" in their ActorState (controlled by the checker algorithm). + * - 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. + */ +static inline smx_simcall_t MC_state_choose_request_for_process(simgrid::mc::State* state, smx_actor_t actor) +{ + /* reset the outgoing transition */ + simgrid::mc::ActorState* procstate = &state->actor_states_[actor->get_pid()]; + state->transition_.pid_ = -1; + state->transition_.argument_ = -1; + state->executed_req_.call_ = SIMCALL_NONE; + + 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 < 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; + } + ++procstate->times_considered; + } + + if (procstate->times_considered >= simcall_comm_waitany__get__count(&actor->simcall_)) + procstate->set_done(); + 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; + ++procstate->times_considered; + break; + } + ++procstate->times_considered; + } + + if (procstate->times_considered >= simcall_comm_testany__get__count(&actor->simcall_)) + procstate->set_done(); + + if (state->transition_.argument_ != -1 || start_count == 0) + req = &actor->simcall_; + + break; + } + + case SIMCALL_COMM_WAIT: { + simgrid::mc::RemotePtr remote_act = + remote(simcall_comm_wait__getraw__comm(&actor->simcall_)); + simgrid::mc::Remote temp_act; + mc_model_checker->get_remote_simulation().read(temp_act, remote_act); + const simgrid::kernel::activity::CommImpl* act = temp_act.get_buffer(); + if (act->src_actor_.get() && act->dst_actor_.get()) + state->transition_.argument_ = 0; // OK + else if (act->src_actor_.get() == nullptr && act->type_ == simgrid::kernel::activity::CommImpl::Type::READY && + act->detached()) + state->transition_.argument_ = 0; // OK + else + state->transition_.argument_ = -1; // timeout + procstate->set_done(); + 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->set_done(); + req = &actor->simcall_; + break; + } + + default: + procstate->set_done(); + state->transition_.argument_ = 0; + req = &actor->simcall_; + break; + } + if (not req) + return nullptr; + + 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. */ + switch (req->call_) { + case SIMCALL_COMM_WAITANY: { + state->internal_req_.call_ = SIMCALL_COMM_WAIT; + simgrid::kernel::activity::CommImpl* remote_comm; + remote_comm = mc_model_checker->get_remote_simulation().read( + remote(simcall_comm_waitany__get__comms(req) + state->transition_.argument_)); + mc_model_checker->get_remote_simulation().read(state->internal_comm_, remote(remote_comm)); + simcall_comm_wait__set__comm(&state->internal_req_, state->internal_comm_.get_buffer()); + simcall_comm_wait__set__timeout(&state->internal_req_, 0); + break; + } + + case SIMCALL_COMM_TESTANY: + state->internal_req_.call_ = SIMCALL_COMM_TEST; + + if (state->transition_.argument_ > 0) { + simgrid::kernel::activity::CommImpl* remote_comm = mc_model_checker->get_remote_simulation().read( + remote(simcall_comm_testany__get__comms(req) + state->transition_.argument_)); + mc_model_checker->get_remote_simulation().read(state->internal_comm_, remote(remote_comm)); + } + + simcall_comm_test__set__comm(&state->internal_req_, state->internal_comm_.get_buffer()); + simcall_comm_test__set__result(&state->internal_req_, state->transition_.argument_); + break; + + case SIMCALL_COMM_WAIT: + mc_model_checker->get_remote_simulation().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_.get_buffer()); + simcall_comm_wait__set__comm(&state->internal_req_, state->internal_comm_.get_buffer()); + break; + + case SIMCALL_COMM_TEST: + mc_model_checker->get_remote_simulation().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_.get_buffer()); + simcall_comm_test__set__comm(&state->internal_req_, state->internal_comm_.get_buffer()); + break; + + default: + /* No translation needed */ + break; + } + + return req; +} + void mc_api::initialize(char** argv) { simgrid::mc::session = new simgrid::mc::Session([argv] { @@ -42,6 +199,70 @@ unsigned long mc_api::get_maxpid() const return MC_smx_get_maxpid(); } +void mc_api::copy_incomplete_comm_pattern(const simgrid::mc::State* state) const +{ + MC_state_copy_incomplete_communications_pattern((simgrid::mc::State*)state); +} + +void mc_api::copy_index_comm_pattern(const simgrid::mc::State* state) const +{ + MC_state_copy_index_communications_pattern((simgrid::mc::State*)state); +} + +kernel::activity::CommImpl* mc_api::get_pattern_comm_addr(smx_simcall_t request) const +{ + auto comm_addr = simcall_comm_isend__getraw__result(request); + return static_cast(comm_addr); +} +std::string mc_api::get_pattern_comm_rdv(void* addr) const +{ + Remote temp_synchro; + mc_model_checker->get_remote_simulation().read(temp_synchro, remote((simgrid::kernel::activity::CommImpl*)addr)); + const kernel::activity::CommImpl* synchro = temp_synchro.get_buffer(); + + char* remote_name = mc_model_checker->get_remote_simulation().read(RemotePtr( + (uint64_t)(synchro->get_mailbox() ? &synchro->get_mailbox()->get_name() : &synchro->mbox_cpy->get_name()))); + auto rdv = mc_model_checker->get_remote_simulation().read_string(RemotePtr(remote_name)); + return rdv; +} + +unsigned long mc_api::get_pattern_comm_src_proc(void* addr) const +{ + Remote temp_synchro; + mc_model_checker->get_remote_simulation().read(temp_synchro, remote((simgrid::kernel::activity::CommImpl*)addr)); + const kernel::activity::CommImpl* synchro = temp_synchro.get_buffer(); + auto src_proc = mc_model_checker->get_remote_simulation().resolve_actor(mc::remote(synchro->src_actor_.get()))->get_pid(); + return src_proc; +} + +std::vector mc_api::get_pattern_comm_data(void* addr) const +{ + Remote temp_synchro; + mc_model_checker->get_remote_simulation().read(temp_synchro, remote((simgrid::kernel::activity::CommImpl*)addr)); + const kernel::activity::CommImpl* synchro = temp_synchro.get_buffer(); + + std::vector buffer {}; + if (synchro->src_buff_ != nullptr) { + buffer.resize(synchro->src_buff_size_); + mc_model_checker->get_remote_simulation().read_bytes(buffer.data(), buffer.size(), + remote(synchro->src_buff_)); + } + return buffer; +} + +const char* mc_api::get_actor_host_name(smx_actor_t actor) const +{ + const char* host_name = MC_smx_actor_get_host_name(actor); + return host_name; +} + +std::size_t mc_api::get_remote_heap_bytes() const +{ + RemoteSimulation& process = mc_model_checker->get_remote_simulation(); + auto heap_bytes_used = mmalloc_get_bytes_used_remote(process.get_heap()->heaplimit, process.get_malloc_info()); + return heap_bytes_used; +} + void mc_api::s_initialize() const { session->initialize(); @@ -130,7 +351,16 @@ void mc_api::mc_dump_record_path() const smx_simcall_t mc_api::mc_state_choose_request(simgrid::mc::State* state) const { - return MC_state_choose_request(state); + for (auto& actor : mc_model_checker->get_remote_simulation().actors()) { + /* Only consider the actors that were marked as interleaving by the checker algorithm */ + if (not state->actor_states_[actor.copy.get_buffer()->get_pid()].is_todo()) + continue; + + smx_simcall_t res = MC_state_choose_request_for_process(state, actor.copy.get_buffer()); + if (res) + return res; + } + return nullptr; } bool mc_api::request_depend(smx_simcall_t req1, smx_simcall_t req2) const