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Altera_Forum's avatar
Altera_Forum
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13 years ago

Improve Quartus II Compilation time (hardware)

Hello my design is taking a long time to compile and i need to improve it.

My computer is an i5 with 4gigs of ram.

I am thinking about buying a computer with two xeon processors, will it decrease my compilation time? Currently is taking me 4 hours to finish a compilation;

Can Quartus II handle well more then one processor?

6 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    To use more then one processor you have to buy subscription edition

  • Altera_Forum's avatar
    Altera_Forum
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    Unless things have changed in 12, Quartus uses only one processor when real work is being done (fitting for example). I have 6 cores and only one of them gets heavily used. So, buy the fastest processor you can get with the most cache. A lot or RAM does not hurt either.

    I assume that dividing the fitting process into multiple threads is still an illusive problem for Altera (and others).
  • Altera_Forum's avatar
    Altera_Forum
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    We've seen the greatest improvement in build time by moving to the fastest memory you can afford.

    We ran several benchmarks builds using a core i7 2600 overclocked to 4.1GHz and several different standard memory modules (PC3-10600, PC3-12800, PC3-14900).

    Overclocking the CPU made a marginal improvement on the build time. Overclocking the memory also improved the build time.

    By going from a standard core i7 2600 at 3.4GHz with PC3-10600 to overclocking the core i7 to 4.1GHz and swapping out the memory for PC3-14900 (also slightly overclocked), we took our 218 minute build down to around 73 minutes.

    On a side note, running the build in command line mode also improves the build time.