コード例 #1
0
    HINLINE void operator()(RefWrapper<ThreadParams*> params,
                            std::string prefix,
                            const DomainInformation domInfo,const Space particleOffset)
    {
        log<picLog::INPUT_OUTPUT > ("HDF5: write species: %1%") % Hdf5FrameType::getName();
        DataConnector &dc = DataConnector::getInstance();
        /*load particle without copy particle data to host*/
        ThisSpecies* speciesTmp = &(dc.getData<ThisSpecies >(ThisSpecies::FrameType::CommunicationTag, true));

        // count total number of particles on the device
        uint64_cu totalNumParticles = 0;

        PMACC_AUTO(simBox, SubGrid<simDim>::getInstance().getSimulationBox());

        log<picLog::INPUT_OUTPUT > ("HDF5: count particles: %1%") % Hdf5FrameType::getName();
        totalNumParticles = PMacc::CountParticles::countOnDevice < CORE + BORDER > (
                                                                                    *speciesTmp,
                                                                                    *(params.get()->cellDescription),
                                                                                    domInfo.localDomainOffset,
                                                                                    domInfo.domainSize);


        log<picLog::INPUT_OUTPUT > ("HDF5: Finish count particles: %1% = %2%") % Hdf5FrameType::getName() % totalNumParticles;
        Hdf5FrameType hostFrame;
        log<picLog::INPUT_OUTPUT > ("HDF5: malloc mapped memory: %1%") % Hdf5FrameType::getName();
        /*malloc mapped memory*/
        ForEach<typename Hdf5FrameType::ValueTypeSeq, MallocMemory<void> > mallocMem;
        mallocMem(byRef(hostFrame), totalNumParticles);
        log<picLog::INPUT_OUTPUT > ("HDF5: Finish malloc mapped memory: %1%") % Hdf5FrameType::getName();

        if (totalNumParticles != 0)
        {

            log<picLog::INPUT_OUTPUT > ("HDF5: get mapped memory device pointer: %1%") % Hdf5FrameType::getName();
            /*load device pointer of mapped memory*/
            Hdf5FrameType deviceFrame;
            ForEach<typename Hdf5FrameType::ValueTypeSeq, GetDevicePtr<void> > getDevicePtr;
            getDevicePtr(byRef(deviceFrame), byRef(hostFrame));
            log<picLog::INPUT_OUTPUT > ("HDF5: Finish get mapped memory device pointer: %1%") % Hdf5FrameType::getName();

            log<picLog::INPUT_OUTPUT > ("HDF5: copy particle to host: %1%") % Hdf5FrameType::getName();
            typedef bmpl::vector< PositionFilter3D<> > usedFilters;
            typedef typename FilterFactory<usedFilters>::FilterType MyParticleFilter;
            MyParticleFilter filter;
            /*activeate filter pipline if moving window is activated*/
            filter.setStatus(MovingWindow::getInstance().isSlidingWindowActive());
            filter.setWindowPosition(domInfo.localDomainOffset, domInfo.domainSize);

            dim3 block(TILE_SIZE);
            DataSpace<simDim> superCells = speciesTmp->getParticlesBuffer().getSuperCellsCount();

            GridBuffer<int, DIM1> counterBuffer(DataSpace<DIM1>(1));
            AreaMapping < CORE + BORDER, MappingDesc > mapper(*(params.get()->cellDescription));

            __cudaKernel(copySpecies)
                (mapper.getGridDim(), block)
                (counterBuffer.getDeviceBuffer().getPointer(),
                 deviceFrame, speciesTmp->getDeviceParticlesBox(),
                 filter,
                 particleOffset, /*relative to data domain (not to physical domain)*/
                 mapper
                 );
            counterBuffer.deviceToHost();
            log<picLog::INPUT_OUTPUT > ("HDF5: memcpy particle counter to host: %1%") % Hdf5FrameType::getName();
            __getTransactionEvent().waitForFinished();
            log<picLog::INPUT_OUTPUT > ("HDF5: all events are finish: %1%") % Hdf5FrameType::getName();
            /*this cost a little bit of time but hdf5 writing is slower^^*/
            assert((uint64_cu) counterBuffer.getHostBuffer().getDataBox()[0] == totalNumParticles);
        }
        /*dump to hdf5 file*/
        ForEach<typename Hdf5FrameType::ValueTypeSeq, hdf5::ParticleAttribute<void> > writeToHdf5;
        writeToHdf5(params, byRef(hostFrame), prefix + FrameType::getName(), domInfo, totalNumParticles);

        /*free host memory*/
        ForEach<typename Hdf5FrameType::ValueTypeSeq, FreeMemory<void> > freeMem;
        freeMem(byRef(hostFrame));
        log<picLog::INPUT_OUTPUT > ("HDF5: Finish write species: %1%") % Hdf5FrameType::getName();

    }
コード例 #2
0
ファイル: LoadSpecies.hpp プロジェクト: AK9527lq/picongpu
    /** Load species from HDF5 checkpoint file
     *
     * @param params thread params with domainwriter, ...
     * @param restartChunkSize number of particles processed in one kernel call
     */
    HINLINE void operator()(ThreadParams* params, const uint32_t restartChunkSize)
    {

        log<picLog::INPUT_OUTPUT > ("HDF5: (begin) load species: %1%") % Hdf5FrameType::getName();
        DataConnector &dc = Environment<>::get().DataConnector();
        GridController<simDim> &gc = Environment<simDim>::get().GridController();

        std::string subGroup = std::string("particles/") + FrameType::getName();
        const PMacc::Selection<simDim>& localDomain = Environment<simDim>::get().SubGrid().getLocalDomain();

        /* load particle without copying particle data to host */
        ThisSpecies* speciesTmp = &(dc.getData<ThisSpecies >(ThisSpecies::FrameType::getName(), true));

        /* count total number of particles on the device */
        uint64_cu totalNumParticles = 0;

        /* load particles info table entry for this process
           particlesInfo is (part-count, scalar pos, x, y, z) */
        typedef uint64_t uint64Quint[5];
        uint64Quint particlesInfo[gc.getGlobalSize()];
        Dimensions particlesInfoSizeRead;

        params->dataCollector->read(params->currentStep,
                                    (std::string(subGroup) + std::string("/particles_info")).c_str(),
                                    particlesInfoSizeRead,
                                    particlesInfo);

        assert(particlesInfoSizeRead[0] == gc.getGlobalSize());

        /* search my entry (using my scalar position) in particlesInfo */
        uint64_t particleOffset = 0;
        uint64_t myScalarPos = gc.getScalarPosition();

        for (size_t i = 0; i < particlesInfoSizeRead[0]; ++i)
        {
            if (particlesInfo[i][1] == myScalarPos)
            {
                totalNumParticles = particlesInfo[i][0];
                break;
            }

            particleOffset += particlesInfo[i][0];
        }

        log<picLog::INPUT_OUTPUT > ("Loading %1% particles from offset %2%") %
            (long long unsigned) totalNumParticles % (long long unsigned) particleOffset;

        if (totalNumParticles != 0)
        {

            Hdf5FrameType hostFrame;
            log<picLog::INPUT_OUTPUT > ("HDF5:  malloc mapped memory: %1%") % Hdf5FrameType::getName();
            /*malloc mapped memory*/
            ForEach<typename Hdf5FrameType::ValueTypeSeq, MallocMemory<bmpl::_1> > mallocMem;
            mallocMem(forward(hostFrame), totalNumParticles);

            log<picLog::INPUT_OUTPUT > ("HDF5:  get mapped memory device pointer: %1%") % Hdf5FrameType::getName();
            /*load device pointer of mapped memory*/
            Hdf5FrameType deviceFrame;
            ForEach<typename Hdf5FrameType::ValueTypeSeq, GetDevicePtr<bmpl::_1> > getDevicePtr;
            getDevicePtr(forward(deviceFrame), forward(hostFrame));

            ForEach<typename Hdf5FrameType::ValueTypeSeq, LoadParticleAttributesFromHDF5<bmpl::_1> > loadAttributes;
            loadAttributes(forward(params), forward(hostFrame), subGroup, particleOffset, totalNumParticles);

            dim3 block(PMacc::math::CT::volume<SuperCellSize>::type::value);

            /* counter is used to apply for work, count used frames and count loaded particles
             * [0] -> offset for loading particles
             * [1] -> number of loaded particles
             * [2] -> number of used frames
             *
             * all values are zero after initialization
             */
            GridBuffer<uint32_t, DIM1> counterBuffer(DataSpace<DIM1>(3));

            const uint32_t cellsInSuperCell = PMacc::math::CT::volume<SuperCellSize>::type::value;

            const uint32_t iterationsForLoad = ceil(double(totalNumParticles) / double(restartChunkSize));
            uint32_t leftOverParticles = totalNumParticles;

            __startAtomicTransaction(__getTransactionEvent());

            for (uint32_t i = 0; i < iterationsForLoad; ++i)
            {
                /* only load a chunk of particles per iteration to avoid blow up of frame usage
                 */
                uint32_t currentChunkSize = std::min(leftOverParticles, restartChunkSize);
                log<picLog::INPUT_OUTPUT > ("HDF5:   load particles on device chunk offset=%1%; chunk size=%2%; left particles %3%") %
                    (i * restartChunkSize) % currentChunkSize % leftOverParticles;
                __cudaKernel(copySpeciesGlobal2Local)
                    (ceil(double(currentChunkSize) / double(cellsInSuperCell)), cellsInSuperCell)
                    (counterBuffer.getDeviceBuffer().getDataBox(),
                     speciesTmp->getDeviceParticlesBox(), deviceFrame,
                     (int) totalNumParticles,
                     localDomain.offset, /*relative to data domain (not to physical domain)*/
                     *(params->cellDescription)
                     );
                speciesTmp->fillAllGaps();
                leftOverParticles -= currentChunkSize;
            }
            __setTransactionEvent(__endTransaction());
            counterBuffer.deviceToHost();
            log<picLog::INPUT_OUTPUT > ("HDF5:  wait for last processed chunk: %1%") % Hdf5FrameType::getName();
            __getTransactionEvent().waitForFinished();

            log<picLog::INPUT_OUTPUT > ("HDF5: used frames to load particles: %1%") % counterBuffer.getHostBuffer().getDataBox()[2];

            if ((uint64_cu) counterBuffer.getHostBuffer().getDataBox()[1] != totalNumParticles)
            {
                log<picLog::INPUT_OUTPUT >("HDF5:  error load species | counter is %1% but should %2%") % counterBuffer.getHostBuffer().getDataBox()[1] % totalNumParticles;
            }
            assert((uint64_cu) counterBuffer.getHostBuffer().getDataBox()[1] == totalNumParticles);

            /*free host memory*/
            ForEach<typename Hdf5FrameType::ValueTypeSeq, FreeMemory<bmpl::_1> > freeMem;
            freeMem(forward(hostFrame));
            log<picLog::INPUT_OUTPUT > ("HDF5: ( end ) load species: %1%") % Hdf5FrameType::getName();
        }
    }
コード例 #3
0
    HINLINE void operator()(RefWrapper<ThreadParams*> params,
                            std::string subGroup,
                            const Space particleOffset)
    {
        log<picLog::INPUT_OUTPUT > ("HDF5: (begin) write species: %1%") % Hdf5FrameType::getName();
        DataConnector &dc = Environment<>::get().DataConnector();
        /* load particle without copy particle data to host */
        ThisSpecies* speciesTmp = &(dc.getData<ThisSpecies >(ThisSpecies::FrameType::getName(), true));

        /* count total number of particles on the device */
        uint64_cu totalNumParticles = 0;

        log<picLog::INPUT_OUTPUT > ("HDF5:  (begin) count particles: %1%") % Hdf5FrameType::getName();
        totalNumParticles = PMacc::CountParticles::countOnDevice < CORE + BORDER > (
                                                                                    *speciesTmp,
                                                                                    *(params.get()->cellDescription),
                                                                                    params.get()->localWindowToDomainOffset,
                                                                                    params.get()->window.localDimensions.size);


        log<picLog::INPUT_OUTPUT > ("HDF5:  ( end ) count particles: %1% = %2%") % Hdf5FrameType::getName() % totalNumParticles;
        Hdf5FrameType hostFrame;
        log<picLog::INPUT_OUTPUT > ("HDF5:  (begin) malloc mapped memory: %1%") % Hdf5FrameType::getName();
        /*malloc mapped memory*/
        ForEach<typename Hdf5FrameType::ValueTypeSeq, MallocMemory<bmpl::_1> > mallocMem;
        mallocMem(byRef(hostFrame), totalNumParticles);
        log<picLog::INPUT_OUTPUT > ("HDF5:  ( end ) malloc mapped memory: %1%") % Hdf5FrameType::getName();

        if (totalNumParticles != 0)
        {

            log<picLog::INPUT_OUTPUT > ("HDF5:  (begin) get mapped memory device pointer: %1%") % Hdf5FrameType::getName();
            /*load device pointer of mapped memory*/
            Hdf5FrameType deviceFrame;
            ForEach<typename Hdf5FrameType::ValueTypeSeq, GetDevicePtr<bmpl::_1> > getDevicePtr;
            getDevicePtr(byRef(deviceFrame), byRef(hostFrame));
            log<picLog::INPUT_OUTPUT > ("HDF5:  ( end ) get mapped memory device pointer: %1%") % Hdf5FrameType::getName();

            log<picLog::INPUT_OUTPUT > ("HDF5:  (begin) copy particle to host: %1%") % Hdf5FrameType::getName();
            typedef bmpl::vector< typename GetPositionFilter<simDim>::type > usedFilters;
            typedef typename FilterFactory<usedFilters>::FilterType MyParticleFilter;
            MyParticleFilter filter;
            /* activate filter pipeline if moving window is activated */
            filter.setStatus(MovingWindow::getInstance().isSlidingWindowActive());
            filter.setWindowPosition(params.get()->localWindowToDomainOffset,
                                     params.get()->window.localDimensions.size);

            dim3 block(TILE_SIZE);

            GridBuffer<int, DIM1> counterBuffer(DataSpace<DIM1>(1));
            AreaMapping < CORE + BORDER, MappingDesc > mapper(*(params.get()->cellDescription));

            __cudaKernel(copySpecies)
                (mapper.getGridDim(), block)
                (counterBuffer.getDeviceBuffer().getPointer(),
                 deviceFrame, speciesTmp->getDeviceParticlesBox(),
                 filter,
                 particleOffset, /*relative to data domain (not to physical domain)*/
                 mapper
                 );
            counterBuffer.deviceToHost();
            log<picLog::INPUT_OUTPUT > ("HDF5:  ( end ) copy particle to host: %1%") % Hdf5FrameType::getName();
            __getTransactionEvent().waitForFinished();
            log<picLog::INPUT_OUTPUT > ("HDF5:  all events are finished: %1%") % Hdf5FrameType::getName();
            /*this cost a little bit of time but hdf5 writing is slower^^*/
            assert((uint64_cu) counterBuffer.getHostBuffer().getDataBox()[0] == totalNumParticles);
        }
        /*dump to hdf5 file*/
        ForEach<typename Hdf5FrameType::ValueTypeSeq, hdf5::ParticleAttribute<bmpl::_1> > writeToHdf5;
        writeToHdf5(params, byRef(hostFrame), std::string("particles/") + FrameType::getName() + std::string("/") + subGroup,
                totalNumParticles);

        /* write meta attributes for species */
        writeMetaAttributes(params.get());

        /*write species counter table to hdf5 file*/
        log<picLog::INPUT_OUTPUT > ("HDF5:  (begin) writing particle index table for %1%") % Hdf5FrameType::getName();
        {
            ColTypeUInt64_5Array ctUInt64_5;
            GridController<simDim>& gc = Environment<simDim>::get().GridController();

            const size_t pos_offset = 2;

            /* particlesMetaInfo = (num particles, scalar position, particle offset x, y, z) */
            uint64_t particlesMetaInfo[5] = {totalNumParticles, gc.getScalarPosition(), 0, 0, 0};
            for (size_t d = 0; d < simDim; ++d)
                particlesMetaInfo[pos_offset + d] = particleOffset[d];

            /* prevent that top (y) gpus have negative value here */
            if (gc.getPosition().y() == 0)
                particlesMetaInfo[pos_offset + 1] = 0;

            if (particleOffset[1] < 0) // 1 == y
                particlesMetaInfo[pos_offset + 1] = 0;

            params.get()->dataCollector->write(
                params.get()->currentStep,
                Dimensions(gc.getGlobalSize(), 1, 1),
                Dimensions(gc.getGlobalRank(), 0, 0),
                ctUInt64_5, 1,
                Dimensions(1, 1, 1),
                (std::string("particles/") + FrameType::getName() + std::string("/") +
                    subGroup + std::string("/particles_info")).c_str(),
                particlesMetaInfo);
        }
        log<picLog::INPUT_OUTPUT > ("HDF5:  ( end ) writing particle index table for %1%") % Hdf5FrameType::getName();

        /*free host memory*/
        ForEach<typename Hdf5FrameType::ValueTypeSeq, FreeMemory<bmpl::_1> > freeMem;
        freeMem(byRef(hostFrame));
        log<picLog::INPUT_OUTPUT > ("HDF5: ( end ) writing species: %1%") % Hdf5FrameType::getName();
    }