I've just had an email from Altera about the availability of Quartus Web Edition 8.0. I'm in the process of downloading it. Hopefully It'll have finished before the system gets overloaded.
Leon
I've just had an email from Altera about the availability of Quartus Web Edition 8.0. I'm in the process of downloading it. Hopefully It'll have finished before the system gets overloaded.
Leon
If anyone is curious, there is a newly-removed feature in 8.0: Parallel compiles have been disabled in Web Edition.
That's not quite correct. I have
set_global_assignment -name NUM_PARALLEL_PROCESSORS 2
in my .qsf file and indeed it uses them. I find this in my fitter report:
... Info: Parallel compilation is enabled and will use up to 2 processors ... Info: Parallel compilation was enabled and used an average of 1.1 processors and a maximum of 2 processors out of 2 processors allo wed
Furthermore, version 8.0 enables the use of multiple parallel local runs for DSE, thus taking advantages are all the core you could possible have.
Version 8.0 is also a bit faster. Oddly, some designs took a slight Fmax hit with 8.0, but I haven't found a consistent pattern.
Tommy
Indeed. I'd think that's a bug, one I hope won't get fixed. :)
I filed a report thinking the GUI setting was broken, and got the response that parallel compiles are now disabled.
We have seen 9% higher utilization for Q8.0 vs Q7.2 (subscription) on the same project. I think I'll wait for 8.1.
-- Mike Treseler
Looks like a nice marketing trick: Release a new software version and you can sell bigger FPGAs :-)
-- Frank Buss, fb@frank-buss.de http://www.frank-buss.de, http://www.it4-systems.de
Curious. I don't know why the fitter would report more than one processor used if it didn't. However I can't say I care much. The benefit was way too little to be measurable. The multi-core DSE is a much more important feature IMO.
Tommy
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