HISTORGRAM-OMPTarget triggers a memory error during checksum computation

[ThorBl]

Describe the bug

Memory access fault during execution of updateChecksum().

OFFLOAD ERROR: Memory access fault by GPU 8 (agent 0xa11a80) at virtual address 0xf15000. Reasons: Unknown (0)
Device pointer 0xf15000 does not point into any (current or prior) host-issued allocation (might be a global, stack, or shared location).

To Reproduce
Run HISTOGRAM-OMPTarget. I was also able to reproduce the same issue with MULTI_REDUCE-OMPTarget.

Expected behavior

There is no memory access fault.

Compilers & Libraries (please complete the following information):

• Compiler & version: [e.g. GCC 4.9.3]: Clang 20
• ROCm version (if applicable): 6.2.1

Additional context

The error occurs during the checksum computation in the calcChecksum method (DataUtils.hpp:387). The problem seems to be that 'dataSpace' (rajaperf::DataSpace::OmpTarget) and check_dataSpace (rajaperf::DataSpace::Host) mismatch. If the data spaces mismatch, it is falsely assumed that ptr (m_counts_final.data()) points to GPU memory. The following call of copyData() (DataUtils.hpp:397) triggers the memory error.