asc_threadfence_block

Applicability

Product

Supported

Atlas 350 Accelerator Card

Atlas A3 training product/Atlas A3 inference product

x

Atlas A2 training product/Atlas A2 inference product

x

Atlas 200I/500 A2 inference product

x

Atlas inference product AI Core

x

Atlas inference product Vector Core

x

Atlas training product

x

Function Usage

Coordinates the memory operation sequence of threads in the same thread block to ensure that all memory read and write operations before a thread calls asc_threadfence_block () are visible to other threads in the same thread block.

Prototype

1
inline void asc_threadfence_block()

Parameters

None

Returns

None

Restrictions

For SIMT programming, this API is not supported.

Header File to Be Included

To use this API, the simt_api/device_sync_functions.h header file must be included.

1
#include "simt_api/device_sync_functions.h"

Examples

For SIMD and SIMT programming:
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3
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5
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__simt_vf__ __launch_bounds__(1024) inline void KernelThreadFenceBlock(__gm__ float* dst, __gm__ float* src)
{
    src[0] = src[0] + 1;
    asc_threadfence_block();
    dst[0] = src[0];
}