[Openmp-dev] Failed to read local memory on device

[Itaru Kitayama via Openmp-dev]

Hi,
Adding this small loop to my app:

#pragma omp target parallel for map(to: nranks)
        for (int i=0;i<0;i++) {
        printf("%d\n", nranks);
        }

leads to a run-time error on device. See below:

[New Thread 0x10008b9ff180 (LWP 103236)]
[Switching focus to CUDA kernel 0, grid 2, block (0,0,0), thread (0,0,0),
device 0, sm 0, warp 0, lane 0]
0x0000000014588068 in
__omp_offloading_3b_801278cf__ZN4nest20EventDeliveryManager15deliver_events_INS_9SpikeDataEEEbiRKSt6vectorIT_SaIS4_EE_l666<<<(1,1,1),(128,1,1)>>>
(
    nranks=<error reading variable: Error: Failed to read local memory at
address 0xc8ee158 on device 0 sm 0 warp 0 lane 0,
error=CUDBG_ERROR_INVALID_MEMORY_ACCESS(0x8).
>) at
/p/project/cpcp0/pcp0151/projects/nest-simulator/nestkernel/event_delivery_manager.cpp:667
667 for (int i=0;i<0;i++) {

I am using the latest trunk Clang for this.
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