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new 5f94c9a [MXNET-264] Improve performance of MKLDNN in small batch
sizes. (#10317)
5f94c9a is described below
commit 5f94c9aa320703432b04c692931aae021604e2b9
Author: Da Zheng <zhengda1...@gmail.com>
AuthorDate: Tue Apr 10 15:33:34 2018 -0700
[MXNET-264] Improve performance of MKLDNN in small batch sizes. (#10317)
* Create MKLDNNMemory to cache metadata.
* Fix lint error.
* Cache concat.
* Fix a bug in NDArray.
* improve hashing.
* don't use omp for gamma and beta in batchnorm.
* address the comments.
* Avoid computing out mean&var in batchnorm.
* Cache LRN.
* Fix a bug in LRN.
* Fix lint error.
* Revert "Avoid computing out mean&var in batchnorm."
This reverts commit 71d0dec0a8bae90a9dc53e08ed1297eede34afa1.
* remove more omp in batchnorm.
* add comments for MKLDNNMemory.
* Revert "improve hashing."
This reverts commit 58854be7e82a65383f3a9989f358e26a85765a17.
* Remove unnecessary TODO.
* address comments.
* Remove additional auto.
* Fix compile error.
* remove more auto.
---
include/mxnet/ndarray.h | 3 +-
src/ndarray/ndarray.cc | 178 +++++++++++--------------
src/operator/nn/lrn-inl.h | 27 ++++
src/operator/nn/mkldnn/mkldnn_base-inl.h | 95 ++++++++++++-
src/operator/nn/mkldnn/mkldnn_base.cc | 2 +-
src/operator/nn/mkldnn/mkldnn_batch_norm-inl.h | 13 +-
src/operator/nn/mkldnn/mkldnn_concat.cc | 84 ++++++++++--
src/operator/nn/mkldnn/mkldnn_lrn-inl.h | 154 ++++++++++++++++-----
8 files changed, 399 insertions(+), 157 deletions(-)
diff --git a/include/mxnet/ndarray.h b/include/mxnet/ndarray.h
index cd9004f..e172279 100644
--- a/include/mxnet/ndarray.h
+++ b/include/mxnet/ndarray.h
@@ -74,6 +74,7 @@ enum NDArrayFormatErr {
kRSPIdxErr, // indices error for row sparse
};
+class MKLDNNMemory;
/*!
* \brief ndarray interface
@@ -730,7 +731,7 @@ class NDArray {
#if MXNET_USE_MKLDNN == 1
/*! This is created when data is stored in MKLDNN format.
*/
- std::shared_ptr<mkldnn::memory> mkl_mem_;
+ std::shared_ptr<MKLDNNMemory> mkl_mem_;
#endif
/*! \brief variable from engine */
Engine::VarHandle var;
diff --git a/src/ndarray/ndarray.cc b/src/ndarray/ndarray.cc
index 8745093..d175a13 100644
--- a/src/ndarray/ndarray.cc
+++ b/src/ndarray/ndarray.cc
@@ -100,7 +100,7 @@ struct ChunkMem {
Storage::Handle h;
std::vector<Storage::Handle> aux_h;
#if MXNET_USE_MKLDNN == 1
- std::shared_ptr<mkldnn::memory> mem;
+ std::shared_ptr<MKLDNNMemory> mem;
#endif
};
@@ -117,8 +117,8 @@ NDArray::Chunk::~Chunk() {
if (skip_free == false) {
#if MXNET_USE_MKLDNN == 1
if (mem.mem) {
- CHECK_LE(mem.mem->get_primitive_desc().get_size(), mem.h.size);
- CHECK_EQ(mem.mem->get_data_handle(), mem.h.dptr);
+ CHECK_LE(mem.mem->GetSize(), mem.h.size);
+ CHECK_EQ(mem.mem->GetDataHandle(), mem.h.dptr);
}
#endif
if (mem.h.size > 0) Storage::Get()->Free(mem.h);
@@ -181,19 +181,20 @@ NDArray NDArray::MKLDNNDataReshape(const TShape &shape)
const {
NDArray ret(shape, ctx(), true, dtype());
// We shouldn't submit the reorder primitive here because submit will
// be called in operators.
- auto format =
GetDefaultFormat(ptr_->mkl_mem_->get_primitive_desc().desc());
- CHECK_NE(format, ptr_->mkl_mem_->get_primitive_desc().desc().data.format);
- auto def_pd = GetPrimitiveDesc(ptr_->mkl_mem_->get_primitive_desc(),
format);
- auto def_mem = TmpMemMgr::Get()->Alloc(def_pd);
+ mkldnn_memory_format_t format = ptr_->mkl_mem_->GetDefaultFormat();
+ CHECK_NE(format, ptr_->mkl_mem_->GetFormat());
+ mkldnn::memory::primitive_desc def_pd =
ptr_->mkl_mem_->GetPrimitiveDesc(format);
+ mkldnn::memory *def_mem = TmpMemMgr::Get()->Alloc(def_pd);
MKLDNNStream *stream = MKLDNNStream::Get();
- stream->RegisterMem(ptr_->mkl_mem_);
- stream->RegisterPrim(mkldnn::reorder(*ptr_->mkl_mem_, *def_mem));
+ std::shared_ptr<mkldnn::memory> curr_mem = ptr_->mkl_mem_->GetMem();
+ stream->RegisterMem(curr_mem);
+ stream->RegisterPrim(mkldnn::reorder(*curr_mem, *def_mem));
// def_mem points to a memory region in the temp space. It's only valid
// inside an operator. As such, the returned NDArray can only be valid
// inside an operator and the shared point doesn't need to do anything
// when it's destroyed.
- ret.ptr_->mkl_mem_ = std::shared_ptr<mkldnn::memory>(def_mem,
- [](mkldnn::memory
*mem){});
+ auto tmp = std::shared_ptr<mkldnn::memory>(def_mem, [](mkldnn::memory
*mem){});
+ ret.ptr_->mkl_mem_.reset(new MKLDNNMemory(tmp));
ret.ptr_->shandle.dptr = def_mem->get_data_handle();
ret.ptr_->shandle.size = def_mem->get_primitive_desc().get_size();
ret.ptr_->delay_alloc = false;
@@ -323,27 +324,13 @@ void NDArray::set_fresh_out_grad(bool state) const {
}
#if MXNET_USE_MKLDNN == 1
-static inline bool same_shape(const TShape &shape, mkldnn_dims_t dims, int
ndims) {
- if (shape.ndim() != (size_t)ndims)
- return false;
- for (int i = 0; i < ndims; i++)
- if (shape[i] != dims[i])
- return false;
- return true;
-}
-
-static inline bool same_shape(const TShape &shape, int dtype,
mkldnn::memory::desc desc) {
- return same_shape(shape, desc.data.dims, desc.data.ndims)
- && get_mkldnn_type(dtype) == desc.data.data_type;
-}
bool NDArray::Chunk::IsMKLDNN() const {
if (storage_type != kDefaultStorage)
return false;
if (mkl_mem_ == nullptr)
return false;
- auto desc = mkl_mem_->get_primitive_desc().desc();
- return desc.data.format != GetDefaultFormat(desc);
+ return mkl_mem_->IsMKLDNN();
}
bool NDArray::Chunk::IsDefault() const {
@@ -353,23 +340,19 @@ bool NDArray::Chunk::IsDefault() const {
// format.
if (mkl_mem_ == nullptr)
return true;
- auto desc = mkl_mem_->get_primitive_desc().desc();
- return desc.data.format == GetDefaultFormat(desc);
+ return !mkl_mem_->IsMKLDNN();
}
void NDArray::Chunk::Reorder2Default() {
if (mkl_mem_ == nullptr)
return;
- auto format = GetDefaultFormat(mkl_mem_->get_primitive_desc().desc());
- CHECK(format != mkl_mem_->get_primitive_desc().desc().data.format);
+ mkldnn_memory_format_t format = mkl_mem_->GetDefaultFormat();
+ CHECK_NE(format, mkl_mem_->GetFormat());
- auto def_pd = GetPrimitiveDesc(mkl_mem_->get_primitive_desc(), format);
+ mkldnn::memory::primitive_desc def_pd = mkl_mem_->GetPrimitiveDesc(format);
mkldnn_mem_ptr def_mem(new mkldnn::memory(def_pd));
- // This may be called in MKLDNN operators. We can't use MKLDNNStream here.
- std::vector<mkldnn::primitive> net;
- net.push_back(mkldnn::reorder(*mkl_mem_, *def_mem));
- mkldnn::stream(mkldnn::stream::kind::eager).submit(net).wait();
+ mkl_mem_->ReorderTo(def_mem.get());
CHECK(shandle.size >= def_pd.get_size());
CheckAndAlloc(def_pd.get_size());
@@ -380,11 +363,11 @@ void NDArray::Chunk::Reorder2Default() {
void NDArray::Chunk::MKLDNNDataReorder(const mkldnn::memory::primitive_desc
&pd) {
// If the memory already uses the specified layout, don't do anything.
- if (mkl_mem_ != nullptr && mkl_mem_->get_primitive_desc() == pd)
+ if (mkl_mem_ != nullptr && mkl_mem_->SameFormat(pd))
return;
- auto _pd = pd;
- auto _desc = _pd.desc();
- auto def_format = GetDefaultFormat(_desc);
+ mkldnn::memory::primitive_desc _pd = pd;
+ mkldnn::memory::desc _desc = _pd.desc();
+ mkldnn_memory_format_t def_format = GetDefaultFormat(_desc);
// If the memory is default, don't do anything.
if (def_format == _desc.data.format && IsDefault())
return;
@@ -397,10 +380,10 @@ void NDArray::Chunk::MKLDNNDataReorder(const
mkldnn::memory::primitive_desc &pd)
std::shared_ptr<mkldnn::memory> new_mem(new mkldnn::memory(pd));
std::shared_ptr<mkldnn::memory> old_mem;
if (IsDefault()) {
- auto def_pd = GetPrimitiveDesc(pd, def_format);
+ mkldnn::memory::primitive_desc def_pd = GetPrimitiveDesc(pd, def_format);
old_mem.reset(new mkldnn::memory(def_pd, shandle.dptr));
} else {
- old_mem = this->mkl_mem_;
+ old_mem = this->mkl_mem_->GetMem();
}
CHECK(old_mem->get_primitive_desc().desc().data.ndims == _desc.data.ndims);
@@ -413,15 +396,15 @@ void NDArray::Chunk::MKLDNNDataReorder(const
mkldnn::memory::primitive_desc &pd)
CheckAndAlloc(pd.get_size());
// TODO(zhengda) We need to avoid memory copy here.
memcpy(shandle.dptr, new_mem->get_data_handle(), pd.get_size());
- mkl_mem_.reset(new mkldnn::memory(pd, shandle.dptr));
+ mkl_mem_.reset(new MKLDNNMemory(pd, shandle.dptr));
}
void NDArray::Chunk::SetMKLMem(const TShape &shape, int dtype) {
// The shape of the array and the one of the MKL memory may mismatch.
// For example, if the array stores parameters, the MKL memory may store data
// in 5 dimensions while the NDArray stores data in 4 dimensions.
- if (mkl_mem_ && mkl_mem_->get_data_handle() == shandle.dptr
- && same_shape(shape, dtype, mkl_mem_->get_primitive_desc().desc())) {
+ if (mkl_mem_ && mkl_mem_->GetDataHandle() == shandle.dptr
+ && mkl_mem_->SameFormat(shape, dtype)) {
return;
}
@@ -459,7 +442,7 @@ void NDArray::Chunk::SetMKLMem(const TShape &shape, int
dtype) {
}
mkldnn::memory::primitive_desc pd(data_md, cpu_engine);
CHECK(shandle.size >= pd.get_size());
- mkl_mem_.reset(new mkldnn::memory(pd, shandle.dptr));
+ mkl_mem_.reset(new MKLDNNMemory(pd, shandle.dptr));
}
/*
@@ -469,7 +452,7 @@ void NDArray::Chunk::SetMKLMem(const TShape &shape, int
dtype) {
*/
static inline mkldnn::memory *GetMKLDNNExact(
const mkldnn::memory *mem, mkldnn::memory::primitive_desc desc) {
- auto src_desc = mem->get_primitive_desc();
+ mkldnn::memory::primitive_desc src_desc = mem->get_primitive_desc();
if (desc == src_desc && desc.desc().data.format ==
src_desc.desc().data.format) {
return const_cast<mkldnn::memory *>(mem);
} else {
@@ -486,16 +469,16 @@ const mkldnn::memory *NDArray::GetMKLDNNData(
LOG(FATAL) << "The size of NDArray doesn't match the requested MKLDNN
memory desc";
return nullptr;
}
- auto mem = GetMKLDNNData();
+ const mkldnn::memory *mem = GetMKLDNNData();
mkldnn::memory::primitive_desc _desc = desc;
- auto desc1 = mem->get_primitive_desc().desc();
- auto desc2 = _desc.desc();
+ mkldnn::memory::desc desc1 = mem->get_primitive_desc().desc();
+ mkldnn::memory::desc desc2 = _desc.desc();
// The MKL memory has the same format and shape as required,
// or both use the default format, we can return the MKL memory.
if (mem->get_primitive_desc() == desc
|| (desc1.data.format == GetDefaultFormat(desc1)
&& desc2.data.format == GetDefaultFormat(desc2))) {
- return GetMKLDNNExact(ptr_->mkl_mem_.get(), desc);
+ return GetMKLDNNExact(ptr_->mkl_mem_->GetRaw(), desc);
} else {
return nullptr;
}
@@ -509,7 +492,7 @@ const mkldnn::memory *NDArray::GetMKLDNNDataReorder(
}
CHECK(storage_type() == kDefaultStorage);
- auto mem = GetMKLDNNData();
+ const mkldnn::memory *mem = GetMKLDNNData();
// If the memory descriptor matches, it's easy.
MKLDNNStream *stream = MKLDNNStream::Get();
if (mem->get_primitive_desc() == desc) {
@@ -519,15 +502,15 @@ const mkldnn::memory *NDArray::GetMKLDNNDataReorder(
mkldnn::memory::primitive_desc _desc = desc;
// Now we need to determine if we should reorder the memory.
// If both use the default formats, we think we don't need to reorder.
- auto desc1 = mem->get_primitive_desc().desc();
- auto desc2 = _desc.desc();
+ mkldnn::memory::desc desc1 = mem->get_primitive_desc().desc();
+ mkldnn::memory::desc desc2 = _desc.desc();
if (desc1.data.format == GetDefaultFormat(desc1) &&
desc2.data.format == GetDefaultFormat(desc2)) {
mkldnn_mem_ptr ret(new mkldnn::memory(desc, mem->get_data_handle()));
stream->RegisterMem(ret);
return ret.get();
} else {
- auto ret = TmpMemMgr::Get()->Alloc(desc);
+ mkldnn::memory *ret = TmpMemMgr::Get()->Alloc(desc);
stream->RegisterPrim(mkldnn::reorder(*mem, *ret));
return ret;
}
@@ -538,18 +521,15 @@ NDArray NDArray::Reorder2Default() const {
if (ptr_->mkl_mem_ == nullptr)
return *this;
- auto format = GetDefaultFormat(ptr_->mkl_mem_->get_primitive_desc().desc());
- if (format == ptr_->mkl_mem_->get_primitive_desc().desc().data.format)
+ mkldnn_memory_format_t format = ptr_->mkl_mem_->GetDefaultFormat();
+ if (format == ptr_->mkl_mem_->GetFormat())
return *this;
NDArray ret(shape(), ctx(), false, dtype());
- auto def_pd = GetPrimitiveDesc(ptr_->mkl_mem_->get_primitive_desc(), format);
+ mkldnn::memory::primitive_desc def_pd =
ptr_->mkl_mem_->GetPrimitiveDesc(format);
CHECK(ret.ptr_->shandle.size >= def_pd.get_size());
mkldnn::memory def_mem(def_pd, ret.ptr_->shandle.dptr);
- // This may be called in MKLDNN operators. We can't use MKLDNNStream here.
- std::vector<mkldnn::primitive> net;
- net.push_back(mkldnn::reorder(*ptr_->mkl_mem_, def_mem));
- mkldnn::stream(mkldnn::stream::kind::eager).submit(net).wait();
+ ptr_->mkl_mem_->ReorderTo(&def_mem);
return ret;
}
@@ -584,17 +564,12 @@ const mkldnn::memory *NDArray::GetMKLDNNData() const {
if (IsMKLDNNData())
CHECK(!IsView());
ptr_->SetMKLMem(IsView() ? ptr_->storage_shape : shape_, dtype_);
- // If shandle has data, the data in shandle and mkl_mem_ should match.
- if (ptr_->shandle.dptr)
- CHECK(ptr_->shandle.dptr == ptr_->mkl_mem_->get_data_handle());
- MKLDNNStream::Get()->RegisterMem(ptr_->mkl_mem_);
- auto pd = ptr_->mkl_mem_->get_primitive_desc();
+ MKLDNNStream::Get()->RegisterMem(ptr_->mkl_mem_->GetMem());
if (IsView()) {
+ mkldnn::memory::primitive_desc pd = ptr_->mkl_mem_->GetPrimitiveDesc();
// Sliced array must use the default layout.
CHECK_EQ(GetDefaultFormat(pd.desc()), pd.desc().data.format);
- }
- if (IsView()) {
- void *off_addr = static_cast<char *>(ptr_->mkl_mem_->get_data_handle())
+ void *off_addr = static_cast<char *>(ptr_->mkl_mem_->GetDataHandle())
+ byte_offset_;
// Create the primitive desc for the new mkldnn memory.
@@ -612,13 +587,13 @@ const mkldnn::memory *NDArray::GetMKLDNNData() const {
MKLDNNStream::Get()->RegisterMem(ret);
return ret.get();
} else {
- return ptr_->mkl_mem_.get();
+ return ptr_->mkl_mem_->GetRaw();
}
}
void NDArray::CopyFrom(const mkldnn::memory &mem) {
CHECK(ptr_ != nullptr) << "The NDArray hasn't been initialized";
- if (ptr_->mkl_mem_.get() == &mem)
+ if (ptr_->mkl_mem_ && ptr_->mkl_mem_->GetRaw() == &mem)
return;
CHECK(mem.get_primitive_desc().get_size() == shape().Size() *
GetTypeSize(dtype_))
@@ -630,10 +605,10 @@ void NDArray::CopyFrom(const mkldnn::memory &mem) {
CHECK(!IsView());
ptr_->SetMKLMem(IsView() ? ptr_->storage_shape : shape_,
dtype_);
- stream->RegisterMem(ptr_->mkl_mem_);
- auto from_desc = mem.get_primitive_desc().desc();
- auto this_desc = ptr_->mkl_mem_->get_primitive_desc().desc();
- auto from_def_format = GetDefaultFormat(from_desc);
+ stream->RegisterMem(ptr_->mkl_mem_->GetMem());
+ mkldnn::memory::desc from_desc = mem.get_primitive_desc().desc();
+ mkldnn::memory::desc this_desc = ptr_->mkl_mem_->GetPrimitiveDesc().desc();
+ mkldnn_memory_format_t from_def_format = GetDefaultFormat(from_desc);
if (IsView()) {
// Sliced array must use the default layout.
CHECK_EQ(GetDefaultFormat(this_desc), this_desc.data.format);
@@ -652,12 +627,13 @@ void NDArray::CopyFrom(const mkldnn::memory &mem) {
mkldnn::memory::primitive_desc pd(data_md,
mem.get_primitive_desc().get_engine());
mkldnn_mem_ptr tmp_mem(new mkldnn::memory(pd, mem.get_data_handle()));
stream->RegisterMem(tmp_mem);
- stream->RegisterPrim(mkldnn::reorder(*tmp_mem, *ptr_->mkl_mem_));
+ stream->RegisterPrim(mkldnn::reorder(*tmp_mem, *ptr_->mkl_mem_->GetRaw()));
} else if (!same_shape(shape_, from_desc.data.dims, from_desc.data.ndims)) {
// In this case, the source memory stores data in a customized layout. We
// need to reorganize the data in memory before we can reshape.
- auto def_pd = GetPrimitiveDesc(mem.get_primitive_desc(), from_def_format);
- auto def_mem = TmpMemMgr::Get()->Alloc(def_pd);
+ mkldnn::memory::primitive_desc def_pd =
GetPrimitiveDesc(mem.get_primitive_desc(),
+ from_def_format);
+ mkldnn::memory *def_mem = TmpMemMgr::Get()->Alloc(def_pd);
stream->RegisterPrim(mkldnn::reorder(mem, *def_mem));
// Now we can reshape it
mkldnn::memory::dims dims(this_desc.data.dims,
@@ -668,32 +644,32 @@ void NDArray::CopyFrom(const mkldnn::memory &mem) {
mkldnn::memory::primitive_desc pd(data_md,
mem.get_primitive_desc().get_engine());
mkldnn_mem_ptr tmp_mem(new mkldnn::memory(pd, def_mem->get_data_handle()));
stream->RegisterMem(tmp_mem);
- stream->RegisterPrim(mkldnn::reorder(*tmp_mem, *ptr_->mkl_mem_));
- } else if (mem.get_primitive_desc() == ptr_->mkl_mem_->get_primitive_desc())
{
+ stream->RegisterPrim(mkldnn::reorder(*tmp_mem, *ptr_->mkl_mem_->GetRaw()));
+ } else if (mem.get_primitive_desc() == ptr_->mkl_mem_->GetPrimitiveDesc()) {
// If the layout is the same, we can just copy data.
- stream->RegisterPrim(mkldnn::reorder(mem, *ptr_->mkl_mem_));
+ stream->RegisterPrim(mkldnn::reorder(mem, *ptr_->mkl_mem_->GetRaw()));
} else {
- auto src_def = GetDefaultFormat(mem.get_primitive_desc().desc());
- auto dst_def =
GetDefaultFormat(ptr_->mkl_mem_->get_primitive_desc().desc());
+ mkldnn_memory_format_t src_def =
GetDefaultFormat(mem.get_primitive_desc().desc());
+ mkldnn_memory_format_t dst_def = ptr_->mkl_mem_->GetDefaultFormat();
// If both are not using the default layouts. There isn't much we can do,
// other than reorder data layout directly.
- if (dst_def != ptr_->mkl_mem_->get_primitive_desc().desc().data.format
+ if (dst_def != ptr_->mkl_mem_->GetFormat()
&& src_def != mem.get_primitive_desc().desc().data.format) {
- stream->RegisterPrim(mkldnn::reorder(mem, *ptr_->mkl_mem_));
- } else if (dst_def ==
ptr_->mkl_mem_->get_primitive_desc().desc().data.format) {
+ stream->RegisterPrim(mkldnn::reorder(mem, *ptr_->mkl_mem_->GetRaw()));
+ } else if (dst_def == ptr_->mkl_mem_->GetFormat()) {
// If the dest mem uses the default memory layout, we can simply use
// the default format of the source memory to improve perf of reorder.
- auto pd = GetPrimitiveDesc(ptr_->mkl_mem_->get_primitive_desc(),
src_def);
- mkldnn_mem_ptr tmp_mem(new mkldnn::memory(pd,
ptr_->mkl_mem_->get_data_handle()));
+ mkldnn::memory::primitive_desc pd =
ptr_->mkl_mem_->GetPrimitiveDesc(src_def);
+ mkldnn_mem_ptr tmp_mem(new mkldnn::memory(pd,
ptr_->mkl_mem_->GetDataHandle()));
stream->RegisterMem(tmp_mem);
stream->RegisterPrim(mkldnn::reorder(mem, *tmp_mem));
} else {
// If the src mem uses the default memory layout, we can use
// the default format of the source memory to improve perf.
- auto pd = GetPrimitiveDesc(mem.get_primitive_desc(), dst_def);
+ mkldnn::memory::primitive_desc pd =
GetPrimitiveDesc(mem.get_primitive_desc(), dst_def);
mkldnn_mem_ptr tmp_mem(new mkldnn::memory(pd, mem.get_data_handle()));
stream->RegisterMem(tmp_mem);
- stream->RegisterPrim(mkldnn::reorder(*tmp_mem, *ptr_->mkl_mem_));
+ stream->RegisterPrim(mkldnn::reorder(*tmp_mem,
*ptr_->mkl_mem_->GetRaw()));
}
}
}
@@ -710,28 +686,28 @@ mkldnn::memory *NDArray::CreateMKLDNNData(const
mkldnn::memory::primitive_desc &
}
mkldnn::memory::primitive_desc _desc = desc;
- auto required_format = _desc.desc().data.format;
- auto def_format = GetDefaultFormat(_desc.desc());
+ mkldnn_memory_format_t required_format = _desc.desc().data.format;
+ mkldnn_memory_format_t def_format = GetDefaultFormat(_desc.desc());
// If the required format is a default format, we don't need to worry about
the shape.
// If the shape isn't the same, it actually implicitly reshapes data.
if (required_format == def_format) {
ptr_->SetMKLMem(shape_, dtype_);
- MKLDNNStream::Get()->RegisterMem(ptr_->mkl_mem_);
- return GetMKLDNNExact(ptr_->mkl_mem_.get(), desc);
+ MKLDNNStream::Get()->RegisterMem(ptr_->mkl_mem_->GetMem());
+ return GetMKLDNNExact(ptr_->mkl_mem_->GetRaw(), desc);
}
if (ptr_->mkl_mem_)
- CHECK(ptr_->mkl_mem_->get_data_handle() == ptr_->shandle.dptr);
- if (ptr_->mkl_mem_ && ptr_->mkl_mem_->get_primitive_desc() == desc) {
- MKLDNNStream::Get()->RegisterMem(ptr_->mkl_mem_);
- return GetMKLDNNExact(ptr_->mkl_mem_.get(), desc);
+ CHECK(ptr_->mkl_mem_->GetDataHandle() == ptr_->shandle.dptr);
+ if (ptr_->mkl_mem_ && ptr_->mkl_mem_->GetPrimitiveDesc() == desc) {
+ MKLDNNStream::Get()->RegisterMem(ptr_->mkl_mem_->GetMem());
+ return GetMKLDNNExact(ptr_->mkl_mem_->GetRaw(), desc);
}
CHECK(ptr_->shandle.size >= desc.get_size());
ptr_->CheckAndAlloc(desc.get_size());
- ptr_->mkl_mem_.reset(new mkldnn::memory(desc, ptr_->shandle.dptr));
- MKLDNNStream::Get()->RegisterMem(ptr_->mkl_mem_);
- return ptr_->mkl_mem_.get();
+ ptr_->mkl_mem_.reset(new MKLDNNMemory(desc, ptr_->shandle.dptr));
+ MKLDNNStream::Get()->RegisterMem(ptr_->mkl_mem_->GetMem());
+ return ptr_->mkl_mem_->GetRaw();
}
#endif
diff --git a/src/operator/nn/lrn-inl.h b/src/operator/nn/lrn-inl.h
index fdae1ec..cb441de 100644
--- a/src/operator/nn/lrn-inl.h
+++ b/src/operator/nn/lrn-inl.h
@@ -58,8 +58,35 @@ struct LRNParam : public dmlc::Parameter<LRNParam> {
DMLC_DECLARE_FIELD(nsize)
.describe("normalization window width in elements.");
}
+
+ bool operator==(const LRNParam& other) const {
+ return (this->nsize == other.nsize &&
+ fabs(this->alpha - other.alpha) < 1e-6 &&
+ fabs(this->beta - other.beta) < 1e-6 &&
+ fabs(this->knorm - other.knorm) < 1e-6);
+ }
}; // struct LRNParam
+} // namespace op
+} // namespace mxnet
+
+namespace std {
+template<>
+struct hash<mxnet::op::LRNParam> {
+ size_t operator()(const mxnet::op::LRNParam& val) {
+ size_t ret = 0;
+ ret = dmlc::HashCombine(ret, val.alpha);
+ ret = dmlc::HashCombine(ret, val.beta);
+ ret = dmlc::HashCombine(ret, val.knorm);
+ ret = dmlc::HashCombine(ret, val.nsize);
+ return ret;
+ }
+};
+} // namespace std
+
+namespace mxnet {
+namespace op {
+
template<typename xpu>
void LRNForward(const nnvm::NodeAttrs& attrs, const OpContext &ctx,
const std::vector<TBlob> &in_data,
diff --git a/src/operator/nn/mkldnn/mkldnn_base-inl.h
b/src/operator/nn/mkldnn/mkldnn_base-inl.h
index 61bef11..489351e 100644
--- a/src/operator/nn/mkldnn/mkldnn_base-inl.h
+++ b/src/operator/nn/mkldnn/mkldnn_base-inl.h
@@ -334,11 +334,104 @@ const mkldnn::memory *GetWeights(const NDArray &arr,
const mkldnn::memory::primitive_desc
&target_pd,
int num_groups);
-mkldnn_memory_format_t GetDefaultFormat(mkldnn::memory::desc desc);
+mkldnn_memory_format_t GetDefaultFormat(const mkldnn::memory::desc &desc);
mkldnn_memory_format_t GetDefaultFormat(int num_dims);
mkldnn::memory::primitive_desc GetPrimitiveDesc(mkldnn::memory::primitive_desc
pd,
mkldnn_memory_format_t format);
+inline bool same_shape(const TShape &shape, const mkldnn_dims_t dims, int
ndims) {
+ if (shape.ndim() != (size_t)ndims)
+ return false;
+ for (int i = 0; i < ndims; i++)
+ if (shape[i] != dims[i])
+ return false;
+ return true;
+}
+
+inline bool same_shape(const TShape &shape, int dtype,
+ const mkldnn::memory::desc &desc) {
+ return same_shape(shape, desc.data.dims, desc.data.ndims)
+ && get_mkldnn_type(dtype) == desc.data.data_type;
+}
+
+/*
+ * There is a large overhead of getting mkldnn::memory::primitive_desc from
+ * mkldnn::memory. This class is created to cache the metadata of mkldnn memory
+ * to provide a much more lightweight method to access them.
+ */
+class MKLDNNMemory {
+ std::shared_ptr<mkldnn::memory> mem;
+ mkldnn::memory::desc desc;
+ size_t size; // The number of bytes.
+
+ public:
+ MKLDNNMemory(mkldnn::memory::primitive_desc pd, void *addr): desc(pd.desc())
{
+ mem.reset(new mkldnn::memory(pd, addr));
+ size = pd.get_size();
+ }
+
+ explicit MKLDNNMemory(std::shared_ptr<mkldnn::memory> mem): desc(
+ mem->get_primitive_desc().desc()) {
+ this->mem = mem;
+ mkldnn::memory::primitive_desc pd = mem->get_primitive_desc();
+ size = pd.get_size();
+ }
+
+ void SetDataHandle(void *handle) {
+ mem->set_data_handle(handle);
+ }
+
+ void *GetDataHandle() const {
+ return mem->get_data_handle();
+ }
+
+ std::shared_ptr<mkldnn::memory> GetMem() const {
+ return mem;
+ }
+
+ mkldnn::memory *GetRaw() const {
+ return mem.get();
+ }
+
+ size_t GetSize() const {
+ return size;
+ }
+
+ mkldnn::memory::primitive_desc GetPrimitiveDesc() const {
+ return mem->get_primitive_desc();
+ }
+
+ mkldnn::memory::primitive_desc GetPrimitiveDesc(mkldnn_memory_format_t
format) const {
+ return mxnet::GetPrimitiveDesc(mem->get_primitive_desc(), format);
+ }
+
+ mkldnn_memory_format_t GetDefaultFormat() const {
+ return mxnet::GetDefaultFormat(desc);
+ }
+
+ mkldnn_memory_format_t GetFormat() const {
+ return desc.data.format;
+ }
+
+ bool IsMKLDNN() const {
+ return GetFormat() != GetDefaultFormat();
+ }
+
+ bool SameFormat(mkldnn::memory::primitive_desc pd) const {
+ return mem->get_primitive_desc() == pd;
+ }
+
+ bool SameFormat(const TShape &shape, int dtype) const {
+ return same_shape(shape, dtype, desc);
+ }
+
+ void ReorderTo(mkldnn::memory *other) const {
+ std::vector<mkldnn::primitive> net;
+ net.push_back(mkldnn::reorder(*mem, *other));
+ mkldnn::stream(mkldnn::stream::kind::eager).submit(net).wait();
+ }
+};
+
void FallBackCompute(FCompute fn, const nnvm::NodeAttrs &attrs,
const OpContext &ctx,
const std::vector<NDArray> &inputs,
diff --git a/src/operator/nn/mkldnn/mkldnn_base.cc
b/src/operator/nn/mkldnn/mkldnn_base.cc
index 820cca1..684abd2 100644
--- a/src/operator/nn/mkldnn/mkldnn_base.cc
+++ b/src/operator/nn/mkldnn/mkldnn_base.cc
@@ -190,7 +190,7 @@ mkldnn_memory_format_t GetDefaultFormat(int num_dims) {
}
}
-mkldnn_memory_format_t GetDefaultFormat(mkldnn::memory::desc desc) {
+mkldnn_memory_format_t GetDefaultFormat(const mkldnn::memory::desc &desc) {
if (desc.data.ndims == 1) {
return desc.data.format;
} else if (desc.data.ndims == 2) {
diff --git a/src/operator/nn/mkldnn/mkldnn_batch_norm-inl.h
b/src/operator/nn/mkldnn/mkldnn_batch_norm-inl.h
index 16f9874..d1c80a6 100644
--- a/src/operator/nn/mkldnn/mkldnn_batch_norm-inl.h
+++ b/src/operator/nn/mkldnn/mkldnn_batch_norm-inl.h
@@ -234,20 +234,15 @@ void MKLDNNBatchNormForward(const OpContext &ctx, const
BatchNormParam ¶m,
DType* weight_ptr = gamma.data().dptr<DType>();
DType* bias_ptr = beta.data().dptr<DType>();
if (!param.fix_gamma) {
-#pragma omp parallel for
- for (int i = 0; i < channels_; i++) {
- weight_buf[i] = weight_ptr[i];
- weight_buf[channels_ + i] = bias_ptr[i]; // bias
- }
+ memcpy(weight_buf, weight_ptr, sizeof(weight_buf[0]) * channels_);
+ memcpy(&weight_buf[channels_], bias_ptr, sizeof(weight_buf[0]) *
channels_);
} else if (IsBNWriting(req[batchnorm::kGamma])) {
-#pragma omp parallel for
for (int i = 0; i < channels_; i++) {
weight_buf[i] = (DType)1.0f;
weight_ptr[i] = (DType)1.0f;
weight_buf[channels_ + i] = bias_ptr[i]; // bias
}
} else {
-#pragma omp parallel for
for (int i = 0; i < channels_; i++) {
weight_buf[i] = (DType)1.0f;
weight_buf[channels_ + i] = bias_ptr[i]; // bias
@@ -260,7 +255,6 @@ void MKLDNNBatchNormForward(const OpContext &ctx, const
BatchNormParam ¶m,
DType* inmean =
aux_states[batchnorm::kMovingMean].data().dptr<DType>();
DType* invar = aux_states[batchnorm::kMovingVar].data().dptr<DType>();
// to align with origin implmentation: batch_norm.cc: L164
-#pragma omp parallel for
for (int i = 0; i < channels_; i++) {
omean[i] = inmean[i];
ovar[i] = VARIANCE_TO_INVSTD(invar[i], param.eps);
@@ -282,14 +276,13 @@ void MKLDNNBatchNormForward(const OpContext &ctx, const
BatchNormParam ¶m,
MKLDNNStream::Get()->Submit();
DType* mean_mem_ptr =
reinterpret_cast<DType*>(fwd.GetMean().get_data_handle());
DType* var_mem_ptr =
reinterpret_cast<DType*>(fwd.GetVar().get_data_handle());
-#pragma omp parallel for
for (int i = 0; i < channels_; i++) {
omean[i] = mean_mem_ptr[i];
ovar[i] = VARIANCE_TO_INVSTD(var_mem_ptr[i], param.eps);
}
}
} else { // no input gamma and beta
- LOG(FATAL) << "MKLDNN batch normalization: should not reach here ...";
+ LOG(FATAL) << "MKLDNN batch normalization: should not reach here ...";
}
}
diff --git a/src/operator/nn/mkldnn/mkldnn_concat.cc
b/src/operator/nn/mkldnn/mkldnn_concat.cc
index d3e6e77..240673d 100644
--- a/src/operator/nn/mkldnn/mkldnn_concat.cc
+++ b/src/operator/nn/mkldnn/mkldnn_concat.cc
@@ -30,6 +30,67 @@
namespace mxnet {
namespace op {
+class MKLDNNConcatFwd {
+ std::shared_ptr<mkldnn::concat> fwd;
+ std::vector<std::shared_ptr<mkldnn::memory>> data;
+ std::vector<mkldnn::primitive::at> data_mem;
+ std::shared_ptr<mkldnn::memory> out;
+
+ public:
+ mkldnn::concat::primitive_desc fwd_pd;
+
+ MKLDNNConcatFwd(
+ int concat_dim,
+ const std::vector<mkldnn::memory::primitive_desc> &data_md):
fwd_pd(concat_dim, data_md) {
+ data.resize(data_md.size());
+ }
+
+ void SetNewMem(const std::vector<const mkldnn::memory *> &in_data,
+ const mkldnn::memory &output) {
+ CHECK_EQ(in_data.size(), data.size());
+ for (size_t i = 0; i < data.size(); i++) {
+ if (this->data[i] == nullptr) {
+ this->data[i] = std::shared_ptr<mkldnn::memory>(new mkldnn::memory(
+ in_data[i]->get_primitive_desc(),
in_data[i]->get_data_handle()));
+ this->data_mem.push_back(*this->data[i]);
+ } else {
+ this->data[i]->set_data_handle(in_data[i]->get_data_handle());
+ }
+ }
+ if (this->out == nullptr)
+ this->out = std::shared_ptr<mkldnn::memory>(new mkldnn::memory(
+ fwd_pd.dst_primitive_desc(), output.get_data_handle()));
+ else
+ this->out->set_data_handle(output.get_data_handle());
+
+ if (this->fwd == nullptr)
+ fwd.reset(new mkldnn::concat(fwd_pd, data_mem, *out));
+ }
+
+ const mkldnn::concat &GetFwd() const {
+ return *fwd;
+ }
+};
+
+static MKLDNNConcatFwd &GetConcatForward(
+ int concat_dim, const std::vector<NDArray> &in_data,
+ const std::vector<mkldnn::memory::primitive_desc> &data_md) {
+ static thread_local std::unordered_map<OpSignature, MKLDNNConcatFwd, OpHash>
fwds;
+ OpSignature key;
+ key.AddSign(concat_dim);
+ key.AddSign(in_data);
+
+ auto it = fwds.find(key);
+ if (it == fwds.end()) {
+ MKLDNNConcatFwd fwd(concat_dim, data_md);
+ auto ins_ret = fwds.insert(std::pair<OpSignature, MKLDNNConcatFwd>(
+ key, fwd));
+ CHECK(ins_ret.second);
+ it = ins_ret.first;
+ }
+ return it->second;
+}
+
void MKLDNNConcatForward(const nnvm::NodeAttrs& attrs, const OpContext &ctx,
const std::vector<NDArray> &in_data,
const std::vector<OpReqType> &req,
@@ -39,18 +100,21 @@ void MKLDNNConcatForward(const nnvm::NodeAttrs& attrs,
const OpContext &ctx,
int num_in_data = param.num_args;
int concat_dim = param.dim;
std::vector<mkldnn::memory::primitive_desc> data_md;
- std::vector<mkldnn::primitive::at> data_mem;
+ std::vector<const mkldnn::memory *> data_mem;
+ data_md.reserve(num_in_data);
+ data_mem.reserve(num_in_data);
for (int i =0; i < num_in_data; i++) {
- auto tmp_mem = in_data[i].GetMKLDNNData();
- auto tmp_pd = tmp_mem->get_primitive_desc();
- data_md.push_back(tmp_pd);
- data_mem.push_back(*tmp_mem);
+ const mkldnn::memory *tmp_mem = in_data[i].GetMKLDNNData();
+ mkldnn::memory::primitive_desc tmp_pd = tmp_mem->get_primitive_desc();
+ data_md.push_back(tmp_pd);
+ data_mem.push_back(tmp_mem);
}
- mkldnn::concat::primitive_desc fwd_pd(concat_dim, data_md);
- auto engine = CpuEngine::Get()->get_engine();
- auto out_mem = CreateMKLDNNMem(out_data[concat_enum::kOut],
- fwd_pd.dst_primitive_desc(), req[concat_enum::kOut]);
- MKLDNNStream::Get()->RegisterPrim(mkldnn::concat(fwd_pd, data_mem,
*out_mem.second));
+ MKLDNNConcatFwd &fwd = GetConcatForward(concat_dim, in_data, data_md);
+ mxnet::mkldnn_output_t out_mem = CreateMKLDNNMem(out_data[concat_enum::kOut],
+
fwd.fwd_pd.dst_primitive_desc(),
+ req[concat_enum::kOut]);
+ fwd.SetNewMem(data_mem, *out_mem.second);
+ MKLDNNStream::Get()->RegisterPrim(fwd.GetFwd());
CommitOutput(out_data[concat_enum::kOut], out_mem);
MKLDNNStream::Get()->Submit();
}
diff --git a/src/operator/nn/mkldnn/mkldnn_lrn-inl.h
b/src/operator/nn/mkldnn/mkldnn_lrn-inl.h
index 9a9bf62..b0b715a 100644
--- a/src/operator/nn/mkldnn/mkldnn_lrn-inl.h
+++ b/src/operator/nn/mkldnn/mkldnn_lrn-inl.h
@@ -26,6 +26,7 @@
#define MXNET_OPERATOR_NN_MKLDNN_MKLDNN_LRN_INL_H_
#if MXNET_USE_MKLDNN == 1
+#include <utility>
#include <mkldnn.hpp>
#include "../lrn-inl.h"
#include "./mkldnn_base-inl.h"
@@ -39,11 +40,11 @@ inline algorithm GetMKLDNNLRNAlgo(const LRNParam ¶m) {
return algorithm::lrn_across_channels;
}
-inline lrn_forward::primitive_desc GetLRNFwd(const LRNParam ¶m,
- const bool is_train,
- const memory::desc &src_md) {
- const auto engine = CpuEngine::Get()->get_engine();
- const auto alg = GetMKLDNNLRNAlgo(param);
+inline lrn_forward::primitive_desc GetLRNFwdDesc(const LRNParam ¶m,
+ const bool is_train,
+ const memory::desc &src_md) {
+ mkldnn::engine &engine = CpuEngine::Get()->get_engine();
+ const algorithm alg = GetMKLDNNLRNAlgo(param);
const float alpha = param.alpha;
const float beta = param.beta;
const int nsize = param.nsize;
@@ -63,8 +64,8 @@ GetLRNBwd(const LRNParam ¶m,
const mkldnn::memory::desc &diff_in_md,
const mkldnn::memory::desc &diff_md,
const lrn_forward::primitive_desc &lrnFwd_desc) {
- const auto engine = CpuEngine::Get()->get_engine();
- const auto alg = GetMKLDNNLRNAlgo(param);
+ mkldnn::engine &engine = CpuEngine::Get()->get_engine();
+ const algorithm alg = GetMKLDNNLRNAlgo(param);
const float alpha = param.alpha;
const float beta = param.beta;
const int nsize = param.nsize;
@@ -76,28 +77,113 @@ GetLRNBwd(const LRNParam ¶m,
engine, lrnFwd_desc);
}
+
+typedef ParamOpSign<LRNParam> MKLDNNLRNSignature;
+
+// LRN Forward Class
+class MKLDNNLRNFwd {
+ public:
+ MKLDNNLRNFwd(const LRNParam& param,
+ bool is_train,
+ const NDArray &in_data):
+ is_train(is_train) {
+ _Init(param, is_train, in_data);
+ }
+
+ ~MKLDNNLRNFwd() {}
+
+ void SetDataHandle(const NDArray &data,
+ const NDArray &output);
+
+ void Execute();
+
+ private:
+ std::shared_ptr<mkldnn::lrn_forward> fwd;
+ std::shared_ptr<mkldnn::memory> in_mem;
+ std::shared_ptr<mkldnn::memory> out_mem;
+ std::shared_ptr<mkldnn::memory> ws_mem;
+ bool is_train;
+
+ private:
+ void _Init(const LRNParam ¶m, bool is_train, const NDArray &in_data);
+}; // End of LRN Forword Class
+
+void MKLDNNLRNFwd::_Init(const LRNParam ¶m,
+ bool is_train,
+ const NDArray &in_data) {
+ mkldnn::memory::desc in_data_md =
in_data.GetMKLDNNData()->get_primitive_desc().desc();
+ lrn_forward::primitive_desc fwd_pd = GetLRNFwdDesc(param, is_train,
in_data_md);
+
+ this->in_mem.reset(new mkldnn::memory(in_data.GetMKLDNNData()
+ ->get_primitive_desc()));
+ this->out_mem.reset(new mkldnn::memory(fwd_pd.dst_primitive_desc()));
+ if (is_train) {
+ // If it's training, we have to create a workspace memory. Otherwise,
MKLDNN
+ // will have segmentation fault.
+ ws_mem.reset(new mkldnn::memory(fwd_pd.workspace_primitive_desc()));
+ this->fwd = std::shared_ptr<mkldnn::lrn_forward>(
+ new mkldnn::lrn_forward(fwd_pd, mkldnn::primitive::at(*this->in_mem),
+ *this->ws_mem, *this->out_mem));
+ } else {
+ this->fwd = std::shared_ptr<mkldnn::lrn_forward>(
+ new mkldnn::lrn_forward(fwd_pd, mkldnn::primitive::at(*(this->in_mem)),
+ *(this->out_mem)));
+ }
+}
+
+void MKLDNNLRNFwd::SetDataHandle(const NDArray &in_data,
+ const NDArray &out_data) {
+ const mkldnn::memory *in_data_mem = in_data.GetMKLDNNData();
+ mkldnn::memory *out_data_mem =
const_cast<NDArray&>(out_data).CreateMKLDNNData(
+ this->out_mem->get_primitive_desc());
+ this->in_mem->set_data_handle(in_data_mem->get_data_handle());
+ this->out_mem->set_data_handle(out_data_mem->get_data_handle());
+}
+
+void MKLDNNLRNFwd::Execute() {
+ MKLDNNStream::Get()->RegisterPrim(*(this->fwd));
+ MKLDNNStream::Get()->Submit();
+}
+// End of LRN Class and its functions
+
+static MKLDNNLRNFwd &GetLRNFwd(const LRNParam& param,
+ const OpContext &ctx,
+ const NDArray &in_data) {
+ static thread_local std::unordered_map<MKLDNNLRNSignature,
+ MKLDNNLRNFwd,
+ OpHash> lrn_fwds;
+ auto alg_ = algorithm::lrn_across_channels;
+ auto kind_ = prop_kind::forward_training;
+ if (ctx.is_train) {
+ kind_ = prop_kind::forward_training;
+ } else {
+ kind_ = prop_kind::forward_scoring;
+ }
+
+ MKLDNNLRNSignature key(param);
+ key.AddSign(alg_);
+ key.AddSign(kind_);
+ key.AddSign(in_data);
+
+ auto it = lrn_fwds.find(key);
+ if (it == lrn_fwds.end()) {
+ MKLDNNLRNFwd fwd(param, ctx.is_train, in_data);
+ auto ins_ret = lrn_fwds.insert(std::pair<MKLDNNLRNSignature, MKLDNNLRNFwd>
+ (key, fwd));
+ CHECK(ins_ret.second);
+ it = ins_ret.first;
+ }
+ return it->second;
+}
+
void MKLDNNLRNForward(const OpContext &ctx,
const LRNParam ¶m,
const NDArray &in_data,
const OpReqType req,
const NDArray &out_data) {
- auto src_mem = in_data.GetMKLDNNData();
- const auto src_md = src_mem->get_primitive_desc().desc();
- const auto pdesc = GetLRNFwd(param, ctx.is_train, src_md);
- auto dst_mem = const_cast<NDArray &>(out_data).CreateMKLDNNData(
- pdesc.dst_primitive_desc());
- if (ctx.is_train) {
- std::shared_ptr<const mkldnn::memory> ws_mem(
- new mkldnn::memory(pdesc.workspace_primitive_desc()));
- MKLDNNStream::Get()->RegisterPrim(
- lrn_forward(pdesc, mkldnn::primitive::at(*src_mem),
- *ws_mem, *dst_mem));
- MKLDNNStream::Get()->Submit();
- } else {
- MKLDNNStream::Get()->RegisterPrim(
- lrn_forward(pdesc, mkldnn::primitive::at(*src_mem), *dst_mem));
- MKLDNNStream::Get()->Submit();
- }
+ MKLDNNLRNFwd fwd = GetLRNFwd(param, ctx, in_data);
+ fwd.SetDataHandle(in_data, out_data);
+ fwd.Execute();
}
void MKLDNNLRNBackward(const OpContext &ctx, const LRNParam ¶m,
@@ -109,9 +195,10 @@ void MKLDNNLRNBackward(const OpContext &ctx, const
LRNParam ¶m,
return;
}
// Repeat FW for getting workspace
- auto data_mem = in_data.GetMKLDNNData();
- const auto data_md = data_mem->get_primitive_desc().desc();
- const auto pdesc_fwd = GetLRNFwd(param, ctx.is_train, data_md);
+ const mkldnn::memory *data_mem = in_data.GetMKLDNNData();
+ const mkldnn::memory::desc data_md = data_mem->get_primitive_desc().desc();
+ const lrn_forward::primitive_desc pdesc_fwd = GetLRNFwdDesc(param,
ctx.is_train,
+ data_md);
// TODO(Patric): To keep the function stateless, we can't pass workspace
// from LRN forward to backward. We have to re-compute
@@ -125,12 +212,13 @@ void MKLDNNLRNBackward(const OpContext &ctx, const
LRNParam ¶m,
lrn_forward(pdesc_fwd, mkldnn::primitive::at(*data_mem),
*ws_mem, *dst_temp));
- const auto data_in_md = pdesc_fwd.src_primitive_desc().desc();
- auto diff_mem = out_grad.GetMKLDNNData();
- const auto diff_md = diff_mem->get_primitive_desc().desc();
- const auto pdesc_bwd = GetLRNBwd(param, data_in_md, diff_md, pdesc_fwd);
- auto diff_src_mem = CreateMKLDNNMem(in_grad,
- pdesc_bwd.diff_src_primitive_desc(), req);
+ const mkldnn::memory::desc data_in_md =
pdesc_fwd.src_primitive_desc().desc();
+ const mkldnn::memory *diff_mem = out_grad.GetMKLDNNData();
+ const mkldnn::memory::desc diff_md = diff_mem->get_primitive_desc().desc();
+ const mkldnn::lrn_backward::primitive_desc pdesc_bwd = GetLRNBwd(param,
data_in_md,
+ diff_md,
pdesc_fwd);
+ mkldnn_output_t diff_src_mem = CreateMKLDNNMem(in_grad,
+
pdesc_bwd.diff_src_primitive_desc(), req);
MKLDNNStream::Get()->RegisterPrim(
lrn_backward(pdesc_bwd, mkldnn::primitive::at(*data_mem),
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