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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#include "vtkXMLWriter2.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkLogger.h"
#include "vtkMultiProcessController.h"
#include "vtkMultiProcessStream.h"
#include "vtkObjectFactory.h"
#include "vtkStreamingDemandDrivenPipeline.h"
#include <vtksys/SystemTools.hxx>
#include <cassert>
#include <numeric>
VTK_ABI_NAMESPACE_BEGIN
vtkCxxSetObjectMacro(vtkXMLWriter2, Controller, vtkMultiProcessController);
//----------------------------------------------------------------------------
vtkXMLWriter2::vtkXMLWriter2()
: Controller(nullptr)
, NumberOfGhostLevels(0)
{
this->SetController(vtkMultiProcessController::GetGlobalController());
}
//----------------------------------------------------------------------------
vtkXMLWriter2::~vtkXMLWriter2()
{
this->SetController(nullptr);
}
//----------------------------------------------------------------------------
vtkTypeBool vtkXMLWriter2::ProcessRequest(
vtkInformation* request, vtkInformationVector** inputVector, vtkInformationVector* outputVector)
{
// generate the data
if (request->Has(vtkDemandDrivenPipeline::REQUEST_DATA()))
{
this->Artifacts.clear();
if (!this->RequestData(request, inputVector, outputVector))
{
this->DeleteArtifacts();
}
}
if (request->Has(vtkStreamingDemandDrivenPipeline::REQUEST_UPDATE_EXTENT()))
{
return this->RequestUpdateExtent(request, inputVector, outputVector);
}
// Create data object output
if (request->Has(vtkDemandDrivenPipeline::REQUEST_DATA_OBJECT()))
{
return this->RequestDataObject(request, inputVector, outputVector);
}
// execute information
if (request->Has(vtkDemandDrivenPipeline::REQUEST_INFORMATION()))
{
return this->RequestInformation(request, inputVector, outputVector);
}
return this->Superclass::ProcessRequest(request, inputVector, outputVector);
}
//----------------------------------------------------------------------------
int vtkXMLWriter2::RequestUpdateExtent(
vtkInformation*, vtkInformationVector** inputVector, vtkInformationVector*)
{
using SDDP = vtkStreamingDemandDrivenPipeline;
// setup pipeline request
vtkInformation* inInfo = inputVector[0]->GetInformationObject(0);
inInfo->Set(SDDP::UPDATE_NUMBER_OF_GHOST_LEVELS(), this->NumberOfGhostLevels);
inInfo->Set(SDDP::UPDATE_NUMBER_OF_PIECES(),
this->Controller ? this->Controller->GetNumberOfProcesses() : 1);
inInfo->Set(
SDDP::UPDATE_PIECE_NUMBER(), this->Controller ? this->Controller->GetLocalProcessId() : 0);
return 1;
}
//----------------------------------------------------------------------------
std::tuple<std::string, std::string, std::string> vtkXMLWriter2::SplitFileName(
const std::string& inputName)
{
// if it's a relative path, convert to full path first to avoid issues like
// paraview/paraview#20840.
std::string unixPath = vtksys::SystemTools::CollapseFullPath(inputName);
vtksys::SystemTools::ConvertToUnixSlashes(unixPath);
const auto path = vtksys::SystemTools::GetFilenamePath(unixPath);
const auto fname = vtksys::SystemTools::GetFilenameName(unixPath);
const auto fnameNoExt = vtksys::SystemTools::GetFilenameWithoutLastExtension(fname);
const auto artifactsDir = (fname == fnameNoExt ? fname + std::string("_data") : fnameNoExt);
return std::make_tuple(path, fname, artifactsDir);
}
//----------------------------------------------------------------------------
void vtkXMLWriter2::AddArtifact(const std::string& fname, bool isDir)
{
this->Artifacts.emplace_back(fname, isDir);
}
//----------------------------------------------------------------------------
void vtkXMLWriter2::AddRootArtifact(const std::string& fname, bool isDir)
{
if (this->Controller == nullptr || this->Controller->GetLocalProcessId() == 0)
{
this->AddArtifact(fname, isDir);
}
}
//----------------------------------------------------------------------------
void vtkXMLWriter2::DeleteArtifacts()
{
vtkLogScopeF(INFO, "DeleteArtifacts");
for (const auto& pair : this->Artifacts)
{
if (pair.second)
{
vtksys::SystemTools::RemoveADirectory(pair.first);
}
else
{
vtksys::SystemTools::RemoveFile(pair.first);
}
}
}
//----------------------------------------------------------------------------
bool vtkXMLWriter2::MakeDirectory(const std::string& dirname) const
{
int status = 0;
if (this->Controller == nullptr || this->Controller->GetLocalProcessId() == 0)
{
status = vtksys::SystemTools::MakeDirectory(dirname) ? 1 : 0;
}
if (this->Controller && this->Controller->GetNumberOfProcesses() > 1)
{
this->Controller->Broadcast(&status, 1, 0);
}
return (status == 1);
}
//----------------------------------------------------------------------------
int vtkXMLWriter2::ExclusiveScanSum(vtkMultiProcessController* controller, int count)
{
if (controller == nullptr || controller->GetNumberOfProcesses() <= 1)
{
return 0;
}
const int myRank = controller->GetLocalProcessId();
const int numRanks = controller->GetNumberOfProcesses();
std::vector<int> gatheredResult(numRanks);
// need to use AllGather since vtkMultiProcessController does not support MPI_Scan equivalent yet.
controller->AllGather(&count, gatheredResult.data(), 1);
return std::accumulate(gatheredResult.begin(), std::next(gatheredResult.begin(), myRank), 0);
}
//----------------------------------------------------------------------------
std::vector<std::string> vtkXMLWriter2::Gather(vtkMultiProcessController* controller,
const std::vector<std::string>& values, int destinationRank)
{
if (controller == nullptr || controller->GetNumberOfProcesses() <= 1)
{
return values;
}
assert(destinationRank >= 0 && destinationRank < controller->GetNumberOfProcesses());
vtkMultiProcessStream local;
local << static_cast<int>(values.size());
for (auto& value : values)
{
local << value;
}
std::vector<vtkMultiProcessStream> recvBuffer;
controller->Gather(local, recvBuffer, destinationRank);
if (controller->GetLocalProcessId() == destinationRank)
{
std::vector<std::string> result;
for (auto& stream : recvBuffer)
{
int count;
stream >> count;
for (int cc = 0; cc < count; ++cc)
{
std::string fname;
stream >> fname;
result.push_back(fname);
}
}
return result;
}
else
{
return {};
}
}
//----------------------------------------------------------------------------
void vtkXMLWriter2::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
os << indent << "Controller: " << this->Controller << endl;
os << indent << "NumberOfGhostLevels: " << this->NumberOfGhostLevels << endl;
}
VTK_ABI_NAMESPACE_END
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