aclSysParamOpt

ACL_OPT_DETERMINISTIC = 0

Whether to enable deterministic computing.

• 0 (default): disables deterministic computing.
• 1: enables deterministic computing.

When deterministic computing is enabled, the same output is generated if an operator is executed for multiple times with the same hardware and input. This often slows down operator execution.

By default, deterministic computing is disabled. The results of multiple executions of an operator with the same hardware and input may be different. This is generally caused by asynchronous multi-thread executions during operator implementation, which changes the accumulation sequence of floating point numbers.

You are advised not to enable deterministic computing because it slows down operator execution and affects performance. If the execution results of a model are different for multiple times or the precision needs to be optimized, you can enable deterministic computing to assist model debugging and optimization.