Applications spanning multiple columns

[tmao8]

Is it possible to develop applications spanning multiple columns? Using tloc I am restricted to keeping kernels in one column (for example, when setting the kernel location to (1, 4) I get the error "ValueError: Cannot place kernel example_0 at (1, 4) - (1, 4) does not exist")

[STFleming]

Hi @tmao8,

Currently this is not permitted in the latest release of Riallto and applications are restricted to a single column. This is something that could potentially be explored in future releases.

All the best,
Shane

[soumitraghosh388]

I can see latest version 1.1 released in July 2024. Is it still not supported?

[mariodruiz]

@soumitraghosh388, no multi column is not supported in Riallto

[hecmay]

Hi @STFleming,

Can you please explain the reason that an application is restricted to single column in Riallto? Is there any fix to bypass this restriction? I am not so sure why since Riallto is built on top of MLIR-AIE, which does not have any restrictions like this.

I also notice that you are pushing some major changes to Riallto codebase lately. When can we expect this to be resolved?

Thanks,
Shawn

[mariodruiz]

Hi @hecmay,
We have not tested neither verified multi column. We are also using a relative old version of MLIR-AIE so, I am not sure if multi column is supported. Support for multi column is a great contribution in case you have time.