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#2302: Add perf measurement component and corresponding measurements …
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| /* | ||
| //@HEADER | ||
| // ***************************************************************************** | ||
| // | ||
| // do_flops_perf.cc | ||
| // DARMA/vt => Virtual Transport | ||
| // | ||
| // Copyright 2019-2021 National Technology & Engineering Solutions of Sandia, LLC | ||
| // (NTESS). Under the terms of Contract DE-NA0003525 with NTESS, the U.S. | ||
| // Government retains certain rights in this software. | ||
| // | ||
| // Redistribution and use in source and binary forms, with or without | ||
| // modification, are permitted provided that the following conditions are met: | ||
| // | ||
| // * Redistributions of source code must retain the above copyright notice, | ||
| // this list of conditions and the following disclaimer. | ||
| // | ||
| // * Redistributions in binary form must reproduce the above copyright notice, | ||
| // this list of conditions and the following disclaimer in the documentation | ||
| // and/or other materials provided with the distribution. | ||
| // | ||
| // * Neither the name of the copyright holder nor the names of its | ||
| // contributors may be used to endorse or promote products derived from this | ||
| // software without specific prior written permission. | ||
| // | ||
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | ||
| // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
| // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | ||
| // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | ||
| // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | ||
| // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | ||
| // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | ||
| // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
| // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
| // POSSIBILITY OF SUCH DAMAGE. | ||
| // | ||
| // Questions? Contact [email protected] | ||
| // | ||
| // ***************************************************************************** | ||
| //@HEADER | ||
| */ | ||
|
|
||
| #include <vt/transport.h> | ||
| #include <vt/metrics/perf_event_map.h> | ||
|
|
||
| #include <cstdlib> | ||
| #include <cassert> | ||
| #include <iostream> | ||
|
|
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| /// [Do Flops example] | ||
|
|
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| #include <vt/transport.h> | ||
| #include <vt/runnable/invoke.h> | ||
|
|
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| #include <cstdlib> | ||
| #include <cassert> | ||
| #include <iostream> | ||
|
|
||
| static constexpr std::size_t const default_nrow_object = 8; | ||
| static constexpr std::size_t const default_num_objs = 1; | ||
| static constexpr double const default_tol = 1.0e-02; | ||
| static constexpr std::size_t const default_flops_per_iter = 100000; | ||
|
|
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| volatile double a = 0.5, b = 2.2; | ||
|
|
||
| void | ||
| dummy( void *array ) | ||
| { | ||
| /* Confuse the compiler so as not to optimize | ||
| away the flops in the calling routine */ | ||
| /* Cast the array as a void to eliminate unused argument warning */ | ||
| ( void ) array; | ||
| } | ||
|
|
||
| void | ||
| do_flops( int n ) | ||
| { | ||
| int i; | ||
| double c = 0.11; | ||
|
|
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| for ( i = 0; i < n; i++ ) { | ||
| c += a * b; | ||
| } | ||
| dummy( ( void * ) &c ); | ||
| } | ||
|
|
||
| double pi(uint64_t n) { | ||
| double sum = 0.0; | ||
| int sign = 1; | ||
| for (uint64_t i = 0; i < n; ++i) { | ||
| sum += sign/(2.0*i+1.0); | ||
| sign *= -1; | ||
| } | ||
| return 4.0*sum; | ||
| } | ||
|
|
||
| struct NodeObj { | ||
| bool is_finished_ = false; | ||
| void workFinishedHandler() { is_finished_ = true; } | ||
| bool isWorkFinished() { return is_finished_; } | ||
| }; | ||
| using NodeObjProxy = vt::objgroup::proxy::Proxy<NodeObj>; | ||
|
|
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| struct GenericWork : vt::Collection<GenericWork, vt::Index1D> { | ||
|
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| private: | ||
| size_t iter_ = 0; | ||
| size_t msgReceived_ = 0, totalReceive_ = 0; | ||
| size_t numObjs_ = 1; | ||
| size_t flopsPerIter_ = default_flops_per_iter; | ||
| size_t maxIter_ = 8; | ||
| NodeObjProxy objProxy_; | ||
|
|
||
| public: | ||
| explicit GenericWork() : | ||
| iter_(0), msgReceived_(0), totalReceive_(0), | ||
| numObjs_(1), flopsPerIter_(default_flops_per_iter), maxIter_(8) | ||
| { } | ||
|
|
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| using BlankMsg = vt::CollectionMessage<GenericWork>; | ||
|
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| struct WorkMsg : vt::CollectionMessage<GenericWork> { | ||
| size_t numObjects = 0; | ||
| size_t flopsPerIter = 0; | ||
| size_t iterMax = 0; | ||
| NodeObjProxy objProxy; | ||
|
|
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| WorkMsg() = default; | ||
|
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| WorkMsg(const size_t nobjs, const size_t flops, const size_t itMax, NodeObjProxy proxy) : | ||
| numObjects(nobjs), flopsPerIter(flops), iterMax(itMax), objProxy(proxy) | ||
| { } | ||
| }; | ||
|
|
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| void checkCompleteCB() { | ||
| auto const iter_max_reached = iter_ > maxIter_; | ||
|
|
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| if (iter_max_reached) { | ||
| fmt::print("\n Maximum Number of Iterations Reached. \n\n"); | ||
| objProxy_.broadcast<&NodeObj::workFinishedHandler>(); | ||
| } else { | ||
| fmt::print(" ## ITER {} completed. \n", iter_); | ||
| } | ||
| } | ||
|
|
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| void doIteration() { | ||
| iter_ += 1; | ||
| fmt::print("-- Starting Iteration --\n"); | ||
|
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| vt::theContext()->getTask()->startPerfMeasurements(); | ||
|
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| // ---------------------------------------------------------- | ||
| // test non packed double precision floating point operations | ||
| // should result in ~4*n of these operations | ||
|
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| double p; | ||
| p = pi(10000000); | ||
| fmt::print("pi: {}\n", p); | ||
| // ---------------------------------------------------------- | ||
|
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| auto proxy = this->getCollectionProxy(); | ||
| proxy.reduce<&GenericWork::checkCompleteCB, vt::collective::MaxOp>( | ||
| proxy[0] | ||
| ); | ||
|
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| vt::theContext()->getTask()->stopPerfMeasurements(); | ||
| std::unordered_map<std::string, uint64_t> res = vt::theContext()->getTask()->getPerfMeasurements(); | ||
| for (auto [name, value] : res) { | ||
| fmt::print(" {}: {}\n", name, value); | ||
| } | ||
|
|
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| fmt::print("-- Stopping Iteration --\n"); | ||
| } | ||
|
|
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| struct VecMsg : vt::CollectionMessage<GenericWork> { | ||
| using MessageParentType = vt::CollectionMessage<GenericWork>; | ||
| vt_msg_serialize_if_needed_by_parent_or_type1(vt::IdxBase); | ||
|
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| VecMsg() = default; | ||
|
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| VecMsg(vt::IdxBase const& in_index) : | ||
| vt::CollectionMessage<GenericWork>(), | ||
| from_index(in_index) | ||
| { } | ||
|
|
||
| template <typename Serializer> | ||
| void serialize(Serializer& s) { | ||
| MessageParentType::serialize(s); | ||
| s | from_index; | ||
| } | ||
|
|
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| vt::IdxBase from_index = 0; | ||
| }; | ||
|
|
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| void exchange(VecMsg *msg) { | ||
| msgReceived_ += 1; | ||
|
|
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| if (msgReceived_ == totalReceive_) { | ||
| msgReceived_ = 0; | ||
| doIteration(); | ||
| } | ||
| } | ||
|
|
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| void doIter([[maybe_unused]] BlankMsg *msg) { | ||
| if (numObjs_ == 1) { | ||
| doIteration(); | ||
| return; | ||
| } | ||
|
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| vt::IdxBase const myIdx = getIndex().x(); | ||
| auto proxy = this->getCollectionProxy(); | ||
|
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|
|
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| if (myIdx > 0) { | ||
| proxy[myIdx - 1].send<VecMsg, &GenericWork::exchange>( | ||
| myIdx | ||
| ); | ||
| } | ||
|
|
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| if (size_t(myIdx) < numObjs_ - 1) { | ||
| proxy[myIdx + 1].send<VecMsg, &GenericWork::exchange>( | ||
| myIdx | ||
| ); | ||
| } | ||
| } | ||
|
|
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| void init() { | ||
| totalReceive_ = 2; | ||
|
|
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| if (getIndex().x() == 0) { | ||
| totalReceive_ -= 1; | ||
| } | ||
|
|
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| if (getIndex().x() == numObjs_ - 1) { | ||
| totalReceive_ -= 1; | ||
| } | ||
| } | ||
|
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| void init(WorkMsg* msg) { | ||
| numObjs_ = msg->numObjects; | ||
| flopsPerIter_ = msg->flopsPerIter; | ||
| maxIter_ = msg->iterMax; | ||
| objProxy_ = msg->objProxy; | ||
|
|
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| init(); | ||
| } | ||
| }; | ||
|
|
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| bool isWorkDone(vt::objgroup::proxy::Proxy<NodeObj> const& proxy) { | ||
| auto const this_node = vt::theContext()->getNode(); | ||
| return proxy[this_node].invoke<&NodeObj::isWorkFinished>(); | ||
| } | ||
|
|
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| int main(int argc, char** argv) { | ||
| size_t num_objs = default_num_objs; | ||
| size_t flopsPerIter = default_flops_per_iter; | ||
| size_t maxIter = 8; | ||
|
|
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| std::string name(argv[0]); | ||
|
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| vt::initialize(argc, argv); | ||
|
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| vt::NodeType this_node = vt::theContext()->getNode(); | ||
| vt::NodeType num_nodes = vt::theContext()->getNumNodes(); | ||
|
|
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| if (argc == 1) { | ||
| if (this_node == 0) { | ||
| fmt::print(stderr, "{}: using default arguments since none provided\n", name); | ||
| } | ||
| num_objs = default_num_objs * num_nodes; | ||
| } else if (argc == 2) { | ||
| num_objs = static_cast<size_t>(strtol(argv[1], nullptr, 10)); | ||
| } else if (argc == 3) { | ||
| num_objs = static_cast<size_t>(strtol(argv[1], nullptr, 10)); | ||
| flopsPerIter = static_cast<size_t>(strtol(argv[2], nullptr, 10)); | ||
| } else if (argc == 4) { | ||
| num_objs = static_cast<size_t>(strtol(argv[1], nullptr, 10)); | ||
| flopsPerIter = static_cast<size_t>(strtol(argv[2], nullptr, 10)); | ||
| maxIter = static_cast<size_t>(strtol(argv[3], nullptr, 10)); | ||
| } else { | ||
| fmt::print(stderr, "usage: {} <num-objects> <flops-per-iter> <maxiter>\n", name); | ||
| return 1; | ||
| } | ||
|
|
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| auto grp_proxy = vt::theObjGroup()->makeCollective<NodeObj>("examples_generic_work"); | ||
| using BaseIndexType = typename vt::Index1D::DenseIndexType; | ||
| auto range = vt::Index1D(static_cast<BaseIndexType>(num_objs)); | ||
|
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| auto col_proxy = vt::makeCollection<GenericWork>("examples_generic_work") | ||
| .bounds(range) | ||
| .bulkInsert() | ||
| .wait(); | ||
|
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| vt::runInEpochCollective([col_proxy, grp_proxy, num_objs, flopsPerIter, maxIter]{ | ||
| col_proxy.broadcastCollective<GenericWork::WorkMsg, &GenericWork::init>( | ||
| num_objs, flopsPerIter, maxIter, grp_proxy | ||
| ); | ||
| }); | ||
|
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| while(!isWorkDone(grp_proxy)) { | ||
| vt::runInEpochCollective([col_proxy]{ | ||
| col_proxy.broadcastCollective< | ||
| GenericWork::BlankMsg, &GenericWork::doIter | ||
| >(); | ||
| }); | ||
|
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| vt::thePhase()->nextPhaseCollective(); | ||
| } | ||
|
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| vt::finalize(); | ||
|
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| return 0; | ||
| } | ||
| /// [Do Flops example] |
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