concurrent managed accesses with prefetch

[zjin-lcf]

Running the HIP program using concurrent managed accesses shows that prefetch is not effective. This may be a known issue.
If the program is not written properly, please let me know. Thanks.

https://github.com/zjin-lcf/HeCBench/blob/master/prefetch-hip/main.cu

[abhimeda]

@zjin-lcf Hi, is your issue resolved on the latest HIP? If so can we close this ticket?

[zjin-lcf]

No. Could you please suggest the effective use of prefetch?

[b-sumner]

The link to HeCBench above is not working for me.

[zjin-lcf]

Sorry, the link is https://github.com/zjin-lcf/HeCBench/blob/master/src/prefetch-hip/main.cu

[ppanchad-amd]

@zjin-lcf Internal ticket is created to investigate this issue. Thanks!