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Altera_Forum
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8 years ago

DSP Block Balancing settings using OpenCL

I am trying to compile a multi-kernel file in which one kernel, say A, has 16-bit arithmetic operations. What I see is when I change various parameters in other kernels, DSP usage in kernel A sometim...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

Thanks for referring to analyze-area. I have been able to extract more resource information. The short answer is yes compiler was auto-unrolling and with unroll 1, it was being limited and restricted the DSP usage.

There are still some terms in the area report that I do not understand e-g different block names for.condX.i.preheader, for.bodyY.i, for.endZ.i, where X, Y, Z are random (for now) numbers that I think are because of nested loops in source code but I have not been able to make complete sense of so far. Also it describes resource usage for 'No Source Line' multiple times that I am not sure represents what.