h2exp2

Applicability

Function Usage

Obtains the value of 2 raised to the power of each element of x with a given x.

Prototype

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inline half2 h2exp2(half2 x)

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inline bfloat16x2_t h2exp2(bfloat16x2_t x)

Parameters

Returns

The value of 2 raised to the power of each element of the input.

• If the input element is inf, the return value is inf.
• If the input element is -inf, the return value is 0.
• If the input element is nan, the return value is nan.
• If the result exceeds the maximum range of float, the return value is inf.

Restrictions

For SIMT programming, this API is not supported.

Header File to Be Included

To use the half2 API, the simt_api/asc_fp16.h header file must be included. To use the bfloat16x2_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 KernelExp2(__gm__ half2* dst, __gm__ half2* x)
{
    int idx = threadIdx.x + blockIdx.x * blockDim.x;
    dst[idx] = h2exp2(x[idx]);
}