Zbigniew Zdanowicz comments

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                                            Zbigniew Zdanowicz

Appending a dependency event which is to be signalled from the host causes hangs

I think the reason is that the kernel has `printf()`. Can you remove it and try it again?

Appending a dependency event which is to be signalled from the host causes hangs

> Is there any danger in always having these set? @jandres742 @pvelesko - Yes. Applications should not set debug keys, as using them is only for development and debug purposes.

Appending a dependency event which is to be signalled from the host causes hangs

> what side effects can I expect from using these? You cannot have any quality expectations. Applications may fail, get data errors, crashes or hangs.

A770: Possible miscompilation of mapreduce-like code

@maleadt have you tried to replace UINT32_MAX with UINT64_MAX as timeout value?

A770: Possible miscompilation of mapreduce-like code

@maleadt I know this might be also something in the driver, but in the function: `partialsum_group` don't you think `barrier()` call is needed before ``` if item == 1 val...

A770: Possible miscompilation of mapreduce-like code

If you are willing to build a driver to quickly test a possible fix, then let me know, you'll need to add two lines of code.

A770: Possible miscompilation of mapreduce-like code

Please find the file: level_zero/core/source/cmdqueue/cmdqueue_hw.inl method: `CommandQueueHw::dispatchTaskCountPostSyncRegular` and add these two lines: ``` args.hdcPipelineFlush = true; args.unTypedDataPortCacheFlush = true ```