RuntimeMacros.hpp File Reference

#include "alpaka/core/Sycl.hpp"
#include <stdexcept>

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Macros
#define	ALPAKA_THROW_ACC(MSG)
	ALPAKA_THROW_ACC either aborts(terminating the program and creating a core dump) or throws std::runtime_error depending on the Acc. The std::runtime_error exception can be caught in the catch block.

Macro Definition Documentation

ALPAKA_THROW_ACC

#define ALPAKA_THROW_ACC

(

MSG

)

Value:

        {                                                                                                             \
            printf("alpaka encountered a user-defined error condition:\n%s", (MSG));                                  \
            throw std::runtime_error(MSG);                                                                            \
        }

ALPAKA_THROW_ACC either aborts(terminating the program and creating a core dump) or throws std::runtime_error depending on the Acc. The std::runtime_error exception can be caught in the catch block.

For CUDA __trap function is used which triggers std::runtime_error but can be caught during wait not exec. For HIP abort() function is used and calls __builtin_trap() For SYCL assert(false) is not used since it can be disabled with the -DNDEBUG compile option. abort() is used although it generates a runtime error instead of aborting in GPUs: "Caught synchronous SYCL exception: Unresolved Symbol <abort> -999 (Unknown PI error)."

The OpenMP specification mandates that exceptions thrown by some thread must be handled by the same thread. Therefore std::runtime_error thrown by ALPAKA_THROW_ACC aborts the the program for OpenMP backends. If needed the SIGABRT signal can be caught by signal handler.

Definition at line 55 of file RuntimeMacros.hpp.