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Add float16 support to Elementwise Add op #9231

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merged 3 commits into from
Mar 20, 2018
Merged

Add float16 support to Elementwise Add op #9231

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4bf168b
add fp16 kernel for elementwise add
kexinzhao Mar 20, 2018
3da094f
rearrange test
kexinzhao Mar 20, 2018
d307b5e
Merge remote-tracking branch 'upstream/develop' into elementwise_add_…
kexinzhao Mar 20, 2018
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21 changes: 11 additions & 10 deletions paddle/fluid/operators/elementwise_add_op.cu
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Original file line number Diff line number Diff line change
Expand Up @@ -14,19 +14,20 @@ limitations under the License. */

#define EIGEN_USE_GPU
#include "paddle/fluid/operators/elementwise_add_op.h"
#include "paddle/fluid/platform/float16.h"

namespace ops = paddle::operators;
namespace plat = paddle::platform;

REGISTER_OP_CUDA_KERNEL(
elementwise_add,
ops::ElementwiseAddKernel<paddle::platform::CUDADeviceContext, float>,
ops::ElementwiseAddKernel<paddle::platform::CUDADeviceContext, double>,
ops::ElementwiseAddKernel<paddle::platform::CUDADeviceContext, int>,
ops::ElementwiseAddKernel<paddle::platform::CUDADeviceContext, int64_t>);
elementwise_add, ops::ElementwiseAddKernel<plat::CUDADeviceContext, float>,
ops::ElementwiseAddKernel<plat::CUDADeviceContext, double>,
ops::ElementwiseAddKernel<plat::CUDADeviceContext, int>,
ops::ElementwiseAddKernel<plat::CUDADeviceContext, int64_t>,
ops::ElementwiseAddKernel<plat::CUDADeviceContext, plat::float16>);
REGISTER_OP_CUDA_KERNEL(
elementwise_add_grad,
ops::ElementwiseAddGradKernel<paddle::platform::CUDADeviceContext, float>,
ops::ElementwiseAddGradKernel<paddle::platform::CUDADeviceContext, double>,
ops::ElementwiseAddGradKernel<paddle::platform::CUDADeviceContext, int>,
ops::ElementwiseAddGradKernel<paddle::platform::CUDADeviceContext,
int64_t>);
ops::ElementwiseAddGradKernel<plat::CUDADeviceContext, float>,
ops::ElementwiseAddGradKernel<plat::CUDADeviceContext, double>,
ops::ElementwiseAddGradKernel<plat::CUDADeviceContext, int>,
ops::ElementwiseAddGradKernel<plat::CUDADeviceContext, int64_t>);
62 changes: 30 additions & 32 deletions paddle/fluid/platform/float16.h
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Original file line number Diff line number Diff line change
Expand Up @@ -600,7 +600,7 @@ HOSTDEVICE inline bool operator>=(const float16& a, const float16& b) {

// Arithmetic operators for float16 on ARMv8.2-A CPU
#elif defined(PADDLE_WITH_NATIVE_FP16)
HOST inline float16 operator+(const float16& a, const float16& b) {
inline float16 operator+(const float16& a, const float16& b) {
float16 res;
asm volatile(
"ld1 {v0.h}[0], [%[a_ptr]]\n"
Expand All @@ -616,7 +616,7 @@ HOST inline float16 operator+(const float16& a, const float16& b) {
return res;
}

HOST inline float16 operator-(const float16& a, const float16& b) {
inline float16 operator-(const float16& a, const float16& b) {
float16 res;
asm volatile(
"ld1 {v0.h}[0], [%[a_ptr]]\n"
Expand All @@ -632,7 +632,7 @@ HOST inline float16 operator-(const float16& a, const float16& b) {
return res;
}

HOST inline float16 operator*(const float16& a, const float16& b) {
inline float16 operator*(const float16& a, const float16& b) {
float16 res;
asm volatile(
"ld1 {v0.h}[0], [%[a_ptr]]\n"
Expand All @@ -648,7 +648,7 @@ HOST inline float16 operator*(const float16& a, const float16& b) {
return res;
}

HOST inline float16 operator/(const float16& a, const float16& b) {
inline float16 operator/(const float16& a, const float16& b) {
float16 res;
asm volatile(
"ld1 {v0.h}[0], [%[a_ptr]]\n"
Expand All @@ -664,7 +664,7 @@ HOST inline float16 operator/(const float16& a, const float16& b) {
return res;
}

HOST inline float16 operator-(const float16& a) {
inline float16 operator-(const float16& a) {
float16 res;
asm volatile(
"ld1 {v0.h}[0], [%[a_ptr]]\n"
Expand All @@ -679,27 +679,27 @@ HOST inline float16 operator-(const float16& a) {
return res;
}

HOST inline float16& operator+=(float16& a, const float16& b) {
inline float16& operator+=(float16& a, const float16& b) {
a = a + b;
return a;
}

HOST inline float16& operator-=(float16& a, const float16& b) {
inline float16& operator-=(float16& a, const float16& b) {
a = a - b;
return a;
}

HOST inline float16& operator*=(float16& a, const float16& b) {
inline float16& operator*=(float16& a, const float16& b) {
a = a * b;
return a;
}

HOST inline float16& operator/=(float16& a, const float16& b) {
inline float16& operator/=(float16& a, const float16& b) {
a = a / b;
return a;
}

HOST inline bool operator==(const float16& a, const float16& b) {
inline bool operator==(const float16& a, const float16& b) {
uint16_t res;
asm volatile(
"ld1 {v0.h}[0], [%[a_ptr]]\n"
Expand All @@ -715,11 +715,9 @@ HOST inline bool operator==(const float16& a, const float16& b) {
return (res & 0xffff) != 0;
}

HOST inline bool operator!=(const float16& a, const float16& b) {
return !(a == b);
}
inline bool operator!=(const float16& a, const float16& b) { return !(a == b); }

HOST inline bool operator<(const float16& a, const float16& b) {
inline bool operator<(const float16& a, const float16& b) {
uint16_t res;
asm volatile(
"ld1 {v1.h}[0], [%[a_ptr]]\n"
Expand All @@ -735,7 +733,7 @@ HOST inline bool operator<(const float16& a, const float16& b) {
return (res & 0xffff) != 0;
}

HOST inline bool operator<=(const float16& a, const float16& b) {
inline bool operator<=(const float16& a, const float16& b) {
uint16_t res;
asm volatile(
"ld1 {v1.h}[0], [%[a_ptr]]\n"
Expand All @@ -751,7 +749,7 @@ HOST inline bool operator<=(const float16& a, const float16& b) {
return (res & 0xffff) != 0;
}

HOST inline bool operator>(const float16& a, const float16& b) {
inline bool operator>(const float16& a, const float16& b) {
uint16_t res;
asm volatile(
"ld1 {v0.h}[0], [%[a_ptr]]\n"
Expand All @@ -767,7 +765,7 @@ HOST inline bool operator>(const float16& a, const float16& b) {
return (res & 0xffff) != 0;
}

HOST inline bool operator>=(const float16& a, const float16& b) {
inline bool operator>=(const float16& a, const float16& b) {
uint16_t res;
asm volatile(
"ld1 {v0.h}[0], [%[a_ptr]]\n"
Expand All @@ -785,69 +783,69 @@ HOST inline bool operator>=(const float16& a, const float16& b) {

// Arithmetic operators for float16, software emulated on other CPU
#else
HOST inline float16 operator+(const float16& a, const float16& b) {
inline float16 operator+(const float16& a, const float16& b) {
return float16(float(a) + float(b));
}

HOST inline float16 operator-(const float16& a, const float16& b) {
inline float16 operator-(const float16& a, const float16& b) {
return float16(float(a) - float(b));
}

HOST inline float16 operator*(const float16& a, const float16& b) {
inline float16 operator*(const float16& a, const float16& b) {
return float16(float(a) * float(b));
}

HOST inline float16 operator/(const float16& a, const float16& b) {
inline float16 operator/(const float16& a, const float16& b) {
return float16(float(a) / float(b));
}

HOST inline float16 operator-(const float16& a) {
inline float16 operator-(const float16& a) {
float16 res;
res.x = a.x ^ 0x8000;
return res;
}

HOST inline float16& operator+=(float16& a, const float16& b) {
inline float16& operator+=(float16& a, const float16& b) {
a = float16(float(a) + float(b));
return a;
}

HOST inline float16& operator-=(float16& a, const float16& b) {
inline float16& operator-=(float16& a, const float16& b) {
a = float16(float(a) - float(b));
return a;
}

HOST inline float16& operator*=(float16& a, const float16& b) {
inline float16& operator*=(float16& a, const float16& b) {
a = float16(float(a) * float(b));
return a;
}

HOST inline float16& operator/=(float16& a, const float16& b) {
inline float16& operator/=(float16& a, const float16& b) {
a = float16(float(a) / float(b));
return a;
}

HOST inline bool operator==(const float16& a, const float16& b) {
inline bool operator==(const float16& a, const float16& b) {
return float(a) == float(b);
}

HOST inline bool operator!=(const float16& a, const float16& b) {
inline bool operator!=(const float16& a, const float16& b) {
return float(a) != float(b);
}

HOST inline bool operator<(const float16& a, const float16& b) {
inline bool operator<(const float16& a, const float16& b) {
return float(a) < float(b);
}

HOST inline bool operator<=(const float16& a, const float16& b) {
inline bool operator<=(const float16& a, const float16& b) {
return float(a) <= float(b);
}

HOST inline bool operator>(const float16& a, const float16& b) {
inline bool operator>(const float16& a, const float16& b) {
return float(a) > float(b);
}

HOST inline bool operator>=(const float16& a, const float16& b) {
inline bool operator>=(const float16& a, const float16& b) {
return float(a) >= float(b);
}
#endif
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