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RHobb's avatar
RHobb
Icon for Occasional Contributor rankOccasional Contributor
2 years ago

Quartus disregards allocated RAM specification and num_processors ?

I have Quartus Prime Lite v. 21.1. I have a very large design that won't compile and exits (crashes) after 50 hours of compilation due to out of memory. I have listed to use 8 processors out of the 1...
Hdl
RHobb's avatar
RHobb
Icon for Occasional Contributor rankOccasional Contributor
2 years ago

So my design needs to be simplified. I have lots of loops, over 1000 loops. After 7 straight days of just in the initial seed of the compilation (2%) just analyzing the design, Quartus issued a message out of memory. I checked Task Manager, and it quit when it reached 65% of total Ram usage. It was still using 1 processor core.

I'm unable to comment weather past this stage and into the fitting stage if it does in fact use more than 1 processor core. I do have it set to use 8 cores. I have ram usage to "Default", but I have 128 GB Ram and it used 75GB of that as reported by Task Manager, and quit.

I'm closing this thread out because my design needs to be simplified and I cannot speculate further.