Error message: "An item with the same key has been added" about ilgpu HOT 4 CLOSED

@Costigan Thank you for submitting this bug report. It seems to be an internal ILGPU compiler issue that should not occur and is not related to an error in your program. I have already investigated the described problem and I guess that it has been caused by a synchronization issue in the ABI class (fixed in d149410). After fixing this issue I can load the kernel using the CudaAccelerator and CLAccelerator classes without any problems.

Can you test whether the latest commits solve this problem? Furthermore, rolling back to version 0.6 should circumvent this problem as well.

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Some additional remarks: It looks like you are not using any Group synchronization instructions after loading data into shared memory. Is this intended?

Note that using shared memory in combination with implicitly grouped kernels can lead to undefined and unintended behavior. We should add an error message to ILGPU that simply forbids such kernels. Please use an explicitly grouped kernel to have fine-grained control regarding the number of threads per group.

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I'll close this issue for now, since the above-mentioned commit solves this problem on all test machines. Should you encounter further problems, we can always take up this topic again.

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@m4rs-mt I'm sorry for not responding quickly. I ended up going with a multi-core solution, and performance was good enough. However, getting this implementation going will help me in the future. I'll get it running and add another comment confirming that. Wrt the synchronization instructions, you're right. I should have included one after loading shared memory. Thank you.

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