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CONOPT memory limited to 8GB? #255

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4er4er4er opened this issue Mar 4, 2025 · 1 comment
Open

CONOPT memory limited to 8GB? #255

4er4er4er opened this issue Mar 4, 2025 · 1 comment
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@mapgccv

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@4er4er4er
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4er4er4er commented Mar 4, 2025 •
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There's a complaint in Operations Research StackExchange that CONOPT-for-AMPL does not recognize requests for very large amounts of memory:

https://or.stackexchange.com/questions/12979/assigning-memory-to-conopt-in-ampl-for-solving-a-large-model

According to the user, the "CONOPT space" message says:

  • workmeg=100000 gives 0.76 Mbytes
  • workmeg=100000000 gives 762.94 Mbytes
  • workmeg=10000000000 gives 8191.00 Mbytes
@glebbelov
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The user might try our conopt4 which should have library-managed memory allocation (it is ASL-managed in conopt 3.17)

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@mapgccv @4er4er4er @glebbelov