hsin

Applicability

Function Usage

Obtains the sine of the input data.

Prototype

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inline half hsin(half x)

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inline bfloat16_t hsin(bfloat16_t x)

Parameters

Returns

Sine of the input data.

• If x is inf, the return value is nan.
• If x is -inf, the return value is nan.
• If x is nan, the return value is nan.

Restrictions

When this API is used, the maximum number of threads cannot exceed 1024. Otherwise, stack overflow may occur.

For SIMT programming, this API is not supported.

Header File to Be Included

To use the half API, the simt_api/asc_fp16.h header file must be included. To use the bfloat16_t API, the simt_api/asc_bf16.h header file must be included.

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#include "simt_api/asc_fp16.h"

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#include "simt_api/asc_bf16.h"

Examples

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__simt_vf__ __launch_bounds__(1024) inline void KernelSin(__gm__ half* dst, __gm__ half* x)
{
    int idx = threadIdx.x + blockIdx.x * blockDim.x;
    dst[idx] = hsin(x[idx]); // Obtain the sine of the idxth element of the src source address.
}