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groupNormPlugin.cpp
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groupNormPlugin.cpp
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/*
* SPDX-FileCopyrightText: Copyright (c) 1993-2022 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "groupNormPlugin.h"
#include "groupNormKernel.h"
#include <cmath>
using namespace nvinfer1;
using namespace plugin;
using nvinfer1::plugin::GroupNormPlugin;
using nvinfer1::plugin::GroupNormPluginCreator;
namespace
{
static std::string const kGROUP_NORM_PLUGIN_NAME{"GroupNorm"};
static std::string const kGROUP_NORM_PLUGIN_VERSION{"1"};
size_t constexpr kSERIALIZATION_SIZE{sizeof(float) + sizeof(int32_t)};
} // namespace
int32_t findMaxDivisor(int32_t n, int32_t maxAllowedDivisor)
{
int32_t maxDivisor = -1;
for (int32_t i = 1; i <= std::sqrt(n); i++)
{
if (n % i == 0)
{
int32_t divisor1 = n / i;
int32_t divisor2 = i;
if (divisor1 > maxDivisor && divisor1 < maxAllowedDivisor)
{
maxDivisor = divisor1;
}
if (divisor2 > maxDivisor && divisor2 < maxAllowedDivisor)
{
maxDivisor = divisor2;
}
}
}
return maxDivisor;
}
// class GroupNormPlugin
GroupNormPlugin::GroupNormPlugin(std::string const& name, float epsilon, int32_t bSwish)
: mName(name)
, mEpsilon(epsilon)
, mBSwish(bSwish)
{
memset(&mParams, 0, sizeof(mParams));
}
GroupNormPlugin::GroupNormPlugin(std::string const& name, void const* buffer, size_t length)
: mName(name)
{
PLUGIN_VALIDATE(buffer != nullptr);
PLUGIN_VALIDATE(length == kSERIALIZATION_SIZE);
auto const* d = static_cast<char const*>(buffer);
auto const* a = d;
mEpsilon = read<float>(d);
mBSwish = read<int32_t>(d);
PLUGIN_VALIDATE(d == a + length);
}
IPluginV2DynamicExt* GroupNormPlugin::clone() const noexcept
{
try
{
auto p = new GroupNormPlugin(*this);
p->setPluginNamespace(mNameSpace.c_str());
return p;
}
catch (std::exception const& e)
{
caughtError(e);
}
return nullptr;
}
int32_t GroupNormPlugin::getNbOutputs() const noexcept
{
return 1;
}
DataType GroupNormPlugin::getOutputDataType(int32_t index, DataType const* inputTypes, int32_t nbInputs) const noexcept
{
DataType ret{};
try
{
PLUGIN_VALIDATE(inputTypes != nullptr);
PLUGIN_VALIDATE(nbInputs > 0);
ret = inputTypes[0];
}
catch (std::exception const& e)
{
caughtError(e);
}
return ret;
}
DimsExprs GroupNormPlugin::getOutputDimensions(
int32_t outputIndex, DimsExprs const* inputs, int32_t nbInputs, IExprBuilder& exprBuilder) noexcept
{
DimsExprs ret{};
try
{
PLUGIN_VALIDATE(inputs != nullptr);
PLUGIN_VALIDATE(nbInputs > 0);
ret = inputs[0];
}
catch (std::exception const& e)
{
caughtError(e);
}
return ret;
}
bool GroupNormPlugin::supportsFormatCombination(
int32_t pos, PluginTensorDesc const* inOut, int32_t nbInputs, int32_t nbOutputs) noexcept
{
try
{
PLUGIN_VALIDATE(pos >= 0 && pos <= 3);
if (pos == 0)
{
return inOut[0].type == DataType::kHALF && inOut[0].format == TensorFormat::kHWC8;
}
if (pos == 1 || pos == 2)
{
return inOut[pos].type == DataType::kFLOAT && inOut[pos].format == TensorFormat::kLINEAR;
}
if (pos == 3)
{
return inOut[pos].format == inOut[0].format && inOut[pos].type == inOut[0].type;
}
}
catch (std::exception const& e)
{
caughtError(e);
}
return false;
}
void GroupNormPlugin::configurePlugin(
DynamicPluginTensorDesc const* in, int32_t nbInputs, DynamicPluginTensorDesc const* out, int32_t nbOutputs) noexcept
{
}
size_t GroupNormPlugin::getWorkspaceSize(
PluginTensorDesc const* inputs, int32_t nbInputs, PluginTensorDesc const* outputs, int32_t nbOutputs) const noexcept
{
return getWorkspaceSizeInBytes();
}
size_t GroupNormPlugin::getWorkspaceSizeInBytes() const
{
return (sizeof(float) * 2) * 32 * 32; // sizeof(float2) * maxBatchSize * maxNumberOfGroup. float2
// contians two buffers for sum and squared sum
}
int32_t GroupNormPlugin::enqueue(PluginTensorDesc const* inputDesc, PluginTensorDesc const* outputDesc,
void const* const* inputs, void* const* outputs, void* workspace, cudaStream_t stream) noexcept
{
try
{
int32_t cPerBlock = 320;
int32_t maxBlocksPerHW = 1024;
switch (inputDesc[0].dims.d[1])
{
case 960:
case 1920: cPerBlock = 480; break;
case 512:
case 256: cPerBlock = 256; break;
case 128: cPerBlock = 128; break;
default: cPerBlock = 320;
}
mParams.withSwish = bool(mBSwish);
mParams.dst = static_cast<half*>(outputs[0]);
mParams.src = static_cast<half const*>(inputs[0]);
mParams.gamma = static_cast<float const*>(inputs[1]);
mParams.beta = static_cast<float const*>(inputs[2]);
mParams.redBuffer = static_cast<float*>(workspace);
mParams.n = inputDesc[0].dims.d[0];
mParams.h = inputDesc[0].dims.d[2];
mParams.w = inputDesc[0].dims.d[3];
mParams.c = inputDesc[0].dims.d[1];
mParams.groups = 32;
mParams.hw = mParams.h * mParams.w;
const int32_t blocksPerHW = findMaxDivisor(mParams.hw, maxBlocksPerHW);
mParams.hwPerBlock = divUp(mParams.hw, blocksPerHW);
mParams.cPerBlock = cPerBlock;
mParams.cPerGroup = mParams.c / mParams.groups;
mParams.hwc = mParams.hw * mParams.c;
mParams.invHWC = 1.F / (float) (mParams.hw * mParams.cPerGroup);
mParams.groupsPerBlock = cPerBlock / mParams.cPerGroup;
cudaMemsetAsync(mParams.redBuffer, 0, getWorkspaceSizeInBytes(), stream);
groupNormNHWCSum(mParams, stream);
groupNormNHWCScale(mParams, stream);
return 0;
}
catch (std::exception const& e)
{
caughtError(e);
}
return -1;
}
void GroupNormPlugin::destroy() noexcept
{
delete this;
}
int32_t GroupNormPlugin::initialize() noexcept
{
return 0;
}
void GroupNormPlugin::terminate() noexcept {}
size_t GroupNormPlugin::getSerializationSize() const noexcept
{
return kSERIALIZATION_SIZE;
}
void GroupNormPlugin::serialize(void* buffer) const noexcept
{
try
{
PLUGIN_VALIDATE(buffer != nullptr);
auto* d = static_cast<char*>(buffer);
auto* a = d;
write(d, mEpsilon); // float
write(d, mBSwish); // int32_t
PLUGIN_VALIDATE(d == a + getSerializationSize());
}
catch (std::exception const& e)
{
caughtError(e);
}
}
void GroupNormPlugin::setPluginNamespace(char const* pluginNamespace) noexcept
{
mNameSpace = pluginNamespace;
}
char const* GroupNormPlugin::getPluginNamespace() const noexcept
{
return mNameSpace.c_str();
}
char const* GroupNormPlugin::getPluginType() const noexcept
{
return kGROUP_NORM_PLUGIN_NAME.c_str();
}
char const* GroupNormPlugin::getPluginVersion() const noexcept
{
return kGROUP_NORM_PLUGIN_VERSION.c_str();
}
// class GroupNormPluginCreator
PluginFieldCollection GroupNormPluginCreator::mFC{};
std::vector<PluginField> GroupNormPluginCreator::mPluginAttributes;
GroupNormPluginCreator::GroupNormPluginCreator()
{
mPluginAttributes.clear();
mPluginAttributes.emplace_back(PluginField("epsilon", nullptr, PluginFieldType::kFLOAT32, 1));
mPluginAttributes.emplace_back(PluginField("bSwish", nullptr, PluginFieldType::kINT32, 1));
mFC.nbFields = mPluginAttributes.size();
mFC.fields = mPluginAttributes.data();
}
GroupNormPluginCreator::~GroupNormPluginCreator() {}
IPluginV2* GroupNormPluginCreator::createPlugin(char const* name, PluginFieldCollection const* fc) noexcept
{
try
{
float epsilon = 1e-5F;
int32_t bSwish = 0;
for (int32_t i = 0; i < fc->nbFields; ++i)
{
if (fc->fields[i].name == std::string("epsilon"))
{
epsilon = static_cast<float>(*(static_cast<float const*>((fc->fields[i].data))));
continue;
}
if (fc->fields[i].name == std::string("bSwish"))
{
bSwish = static_cast<int32_t>(*(static_cast<int32_t const*>((fc->fields[i].data))));
continue;
}
}
return new GroupNormPlugin(name, epsilon, bSwish);
}
catch (std::exception const& e)
{
caughtError(e);
}
return nullptr;
}
IPluginV2* GroupNormPluginCreator::deserializePlugin(
char const* name, void const* serialData, size_t serialLength) noexcept
{
try
{
return new GroupNormPlugin(name, serialData, serialLength);
}
catch (std::exception const& e)
{
caughtError(e);
}
return nullptr;
}
char const* GroupNormPluginCreator::getPluginName() const noexcept
{
return kGROUP_NORM_PLUGIN_NAME.c_str();
}
char const* GroupNormPluginCreator::getPluginVersion() const noexcept
{
return kGROUP_NORM_PLUGIN_VERSION.c_str();
}
PluginFieldCollection const* GroupNormPluginCreator::getFieldNames() noexcept
{
return &mFC;
}