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Add support for GPU based numpy reader (NVIDIA#2477)
- GPU based numpy reader uses GPU Direct Storage via cufile library implementation Authored-by: Thorsten Kurth <[email protected]> Co-authored-by: Michał Zientkiewicz <[email protected]> Co-authored-by: Janusz Lisiecki <[email protected]> Signed-off-by: Janusz Lisiecki <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,7 @@ | ||
| DALI_@DALI_VERSION@ { | ||
| global: | ||
| *; | ||
| # cufile.h declares all its symbols with the default visibility so our wrappers | ||
| # are exported as well. We don't want this so hide it explicitly here | ||
| local: cuFile*; | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,7 @@ | ||
| DALI_CORE_@DALI_VERSION@ { | ||
| global: | ||
| *; | ||
| # cufile.h declares all its symbols with the default visibility so our wrappers | ||
| # are exported as well. We don't want this so hide it explicitly here | ||
| local: cuFile*; | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,7 @@ | ||
| DALI_KERNELS_@DALI_VERSION@ { | ||
| global: | ||
| *; | ||
| # cufile.h declares all its symbols with the default visibility so our wrappers | ||
| # are exported as well. We don't want this so hide it explicitly here | ||
| local: cuFile*; | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,7 @@ | ||
| DALI_OPERATORS_@DALI_VERSION@ { | ||
| global: | ||
| *; | ||
| # cufile.h declares all its symbols with the default visibility so our wrappers | ||
| # are exported as well. We don't want this so hide it explicitly here | ||
| local: cuFile*; | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,61 @@ | ||
| // Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved. | ||
| // | ||
| // 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. | ||
|
|
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| #include <dlfcn.h> | ||
| #include <stdio.h> | ||
| #include <mutex> | ||
| #include <string> | ||
| #include <unordered_map> | ||
| #include "dali/core/dynlink_cufile.h" | ||
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|
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| namespace { | ||
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| typedef void* CUFILE; | ||
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| static const char __CufileLibName[] = "libcufile.so"; | ||
| static const char __CufileLibName1[] = "libcufile.so.1"; | ||
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| CUFILE loadCufileLibrary() { | ||
| CUFILE ret = nullptr; | ||
|
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| ret = dlopen(__CufileLibName1, RTLD_NOW); | ||
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| if (!ret) { | ||
| ret = dlopen(__CufileLibName, RTLD_NOW); | ||
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| if (!ret) { | ||
| printf("dlopen \"%s\" failed!\n", __CufileLibName); | ||
| } | ||
| } | ||
| return ret; | ||
| } | ||
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| void *LoadSymbol(const char *name) { | ||
| static CUFILE cufileDrvLib = loadCufileLibrary(); | ||
| void *ret = cufileDrvLib ? dlsym(cufileDrvLib, name) : nullptr; | ||
| return ret; | ||
| } | ||
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| } // namespace | ||
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| // it is defined in the generated file | ||
| typedef void *tLoadSymbol(const char *name); | ||
| void CufileSetSymbolLoader(tLoadSymbol loader_func); | ||
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| void cufileInit() { | ||
| #if CUFILE_ENABLED | ||
| static std::once_flag cufile_once; | ||
| std::call_once(cufile_once, CufileSetSymbolLoader, LoadSymbol); | ||
| #endif | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,57 @@ | ||
| // Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved. | ||
| // | ||
| // 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. | ||
|
|
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| #include <dirent.h> | ||
| #include <errno.h> | ||
| #include <glob.h> | ||
| #include <memory> | ||
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| #include "dali/core/common.h" | ||
| #include "dali/operators/reader/loader/cufile_loader.h" | ||
| #include "dali/operators/reader/loader/file_loader.h" | ||
| #include "dali/operators/reader/loader/utils.h" | ||
| #include "dali/util/cufile.h" | ||
| #include "dali/util/cufile_helper.h" | ||
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| namespace dali { | ||
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| CUFileLoader::CUFileLoader(const OpSpec& spec, vector<std::string> images, bool shuffle_after_epoch) | ||
| : FileLoader<GPUBackend, ImageFileWrapperGPU, CUFileStream>(spec) { | ||
| // set the device first | ||
| DeviceGuard g(device_id_); | ||
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| // this is needed for the driver singleton | ||
| static std::mutex open_driver_mutex; | ||
| static std::weak_ptr<cufile::CUFileDriverHandle> driver_handle; | ||
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| // load the cufile driver | ||
| std::lock_guard<std::mutex> dlock(open_driver_mutex); | ||
| if (!(d_ = driver_handle.lock())) { | ||
| d_ = std::make_shared<cufile::CUFileDriverHandle>(device_id_); | ||
| driver_handle = d_; | ||
| } | ||
| } | ||
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| void CUFileLoader::PrepareEmpty(ImageFileWrapperGPU& image_file) { | ||
| PrepareEmptyTensor(image_file.image); | ||
| image_file.filename.clear(); | ||
| } | ||
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| void CUFileLoader::ReadSample(ImageFileWrapperGPU& imfile) { | ||
| // set the device first | ||
| DeviceGuard g(device_id_); | ||
| this->FileLoader<GPUBackend, ImageFileWrapperGPU, CUFileStream>::ReadSample(imfile); | ||
| } | ||
|
|
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| } // namespace dali |
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