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softmax for fp16 with fp32 accumulator #14098

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Feb 21, 2019
Merged

softmax for fp16 with fp32 accumulator #14098

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4f2006d
softmax for fp16 with fp32 accumulator
szha Feb 8, 2019
58d1c04
return AType in kernel
szha Feb 8, 2019
41e1b51
add dtype
szha Feb 9, 2019
054ac50
kernel
szha Feb 11, 2019
980460f
grad use in-out only when dtype override
szha Feb 12, 2019
2d32008
simplify infer type
szha Feb 13, 2019
0cd3a3b
address comments
szha Feb 13, 2019
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42 changes: 42 additions & 0 deletions src/operator/mxnet_op.h
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Original file line number Diff line number Diff line change
Expand Up @@ -249,6 +249,48 @@ inline int get_num_threads<cpu>(const int N) {
LOG(FATAL) << "Unknown type enum " << type; \
}

#define MXNET_REAL_ACC_TYPE_SWITCH(type, DType, AType, ...)\
switch (type) { \
case mshadow::kFloat32: \
{ \
typedef float DType; \
typedef double AType; \
{__VA_ARGS__} \
} \
break; \
case mshadow::kFloat64: \
{ \
typedef double DType; \
typedef double AType; \
{__VA_ARGS__} \
} \
break; \
case mshadow::kFloat16: \
{ \
typedef mshadow::half::half_t DType; \
typedef float AType; \
{__VA_ARGS__} \
} \
break; \
case mshadow::kUint8: \
LOG(FATAL) << "This operation only support " \
"floating point types not uint8"; \
break; \
case mshadow::kInt8: \
LOG(FATAL) << "This operation only support " \
"floating point types not int8"; \
break; \
case mshadow::kInt32: \
LOG(FATAL) << "This operation only support " \
"floating point types, not int32"; \
break; \
case mshadow::kInt64: \
LOG(FATAL) << "This operation only support " \
"floating point types, not int64"; \
break; \
default: \
LOG(FATAL) << "Unknown type enum " << type; \
}

/*!
* \brief assign the val to out according
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