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[PHI CAPI] support get & set random seed #55659

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merged 1 commit into from
Jul 26, 2023
Merged

[PHI CAPI] support get & set random seed #55659

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10 changes: 10 additions & 0 deletions paddle/phi/capi/include/c_device_context.h
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Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,16 @@ void *PD_DeviceContextAllocateTensor(const PD_DeviceContext *ctx,
PD_DataType dtype,
PD_Status *status);

void PD_DeviceContextSetSeed(const PD_DeviceContext *ctx,
uint64_t seed,
PD_Status *status);

uint64_t PD_DeviceContextGetSeed(const PD_DeviceContext *ctx,
PD_Status *status);

uint64_t PD_DeviceContextGetRandom(const PD_DeviceContext *ctx,
PD_Status *status);

#ifdef __cplusplus
} // extern "C"
#endif
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20 changes: 20 additions & 0 deletions paddle/phi/capi/include/wrapper_base.h
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Original file line number Diff line number Diff line change
Expand Up @@ -298,6 +298,26 @@ class DeviceContext : public WrapperBase<PD_DeviceContext> {
PD_CHECK_STATUS(status);
return static_cast<T*>(ptr);
}

uint64_t seed() const {
C_Status status;
auto seed_val = PD_DeviceContextGetSeed(raw_data(), &status);
PD_CHECK_STATUS(status);
return seed_val;
}

void seed(uint64_t seed_val) const {
C_Status status;
PD_DeviceContextSetSeed(raw_data(), seed_val, &status);
PD_CHECK_STATUS(status);
}

uint64_t random() const {
C_Status status;
auto rand_val = PD_DeviceContextGetRandom(raw_data(), &status);
PD_CHECK_STATUS(status);
return rand_val;
}
};

class Scalar : public WrapperBase<PD_Scalar> {
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28 changes: 28 additions & 0 deletions paddle/phi/capi/lib/c_device_context.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -74,4 +74,32 @@ void* PD_DeviceContextAllocateTensor(const PD_DeviceContext* ctx,
}
}

void PD_DeviceContextSetSeed(const PD_DeviceContext* ctx,
uint64_t seed,
PD_Status* status) {
if (status) {
*status = C_SUCCESS;
}
auto dev_ctx = reinterpret_cast<const phi::DeviceContext*>(ctx);
dev_ctx->GetGenerator()->SetCurrentSeed(seed);
}

uint64_t PD_DeviceContextGetSeed(const PD_DeviceContext* ctx,
PD_Status* status) {
if (status) {
*status = C_SUCCESS;
}
auto dev_ctx = reinterpret_cast<const phi::DeviceContext*>(ctx);
return dev_ctx->GetGenerator()->GetCurrentSeed();
}

uint64_t PD_DeviceContextGetRandom(const PD_DeviceContext* ctx,
PD_Status* status) {
if (status) {
*status = C_SUCCESS;
}
auto dev_ctx = reinterpret_cast<const phi::DeviceContext*>(ctx);
return dev_ctx->GetGenerator()->Random64();
}

PD_REGISTER_CAPI(device_context);