Function cpu_deallocNumaArray

quest/src/cpu/cpu_config.cpp:264–291

void cpu_deallocNumaArray(qcomp* arr, qindex length) {

    // musn't pass nullptr to munmap() below
    if (arr == nullptr)
        return;

#if ! NUMA_AWARE
    cpu_deallocArray(arr);

#elif defined(_WIN32)
    error_numaAllocOrDeallocAttemptedOnWindows();

#else
    qindex arrSize = length * sizeof(qcomp);
    long pageSize = cpu_getPageSize();

    // sub-page arrays were allocated with calloc()
    if (arrSize <= pageSize)
        return cpu_deallocArray(arr);

    qindex numPages = getNumPagesToContainArray(pageSize, arrSize);
    qindex numBytes = numPages * pageSize; // gauranteed no overflow
    int success = munmap(arr, numBytes);

    if (success == -1)
        error_numaUnmappingFailed();
#endif
}


qcomp** cpu_allocAndInitMatrixWrapper(qcomp* arr, qindex dim) {