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noinia / hgeometry

HGeometry is a library for computing with geometric objects in Haskell. It defines basic geometric types and primitives, and it implements some geometric data structures and algorithms. The main two focusses are: (1) Strong type safety, and (2) implementations of geometric algorithms and data structures that have good asymptotic running time guarantees.
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Build fails because "Simplifier ticks exhausted" #222

Open nh518 opened 11 months ago

nh518 commented 11 months ago

I'm working with WSL2 to build the project but I failed miserably.

I have tried different versions of ghc (8.10.7, 9.2.8, 9.4.5, 9.6.2) & cabal (3.6.2.0, 3.8.1.0, 3.10.1.0) and I still can't build the project. The furthest that I got was to the following error. Also it was very difficult to search for this error and I only found this issue to get started. 

cabal build all
...
[47 of 48] Compiling Statistics.Correlation ( Statistics/Correlation.hs, dist/build/Statistics/Correlation.p_o )
Simplifier ticks exhausted
  When trying UnfoldingDone pearsonMatByRow
  To increase the limit, use -fsimpl-tick-factor=N (default 100).

  In addition try adjusting -funfolding-case-threshold=N and
  -funfolding-case-scaling=N for the module in question.
  Using threshold=1 and scaling=5 should break most inlining loops.

  If you need to increase the tick factor substantially, while also
  adjusting unfolding parameters please file a bug report and
  indicate the factor you needed.

  If GHC was unable to complete compilation even with a very large factor
  (a thousand or more), please consult the "Known bugs or infelicities"
  section in the Users Guide before filing a report. There are a
  few situations unlikely to occur in practical programs for which
  simplifier non-termination has been judged acceptable.

  To see detailed counts use -ddump-simpl-stats
  Total ticks: 9684
Error: cabal: Failed to build reanimate-svg-0.13.0.1 (which is required by
exe:showcase from hgeometry-showcase-0.13.0). See the build log above for
details.
Failed to build statistics-0.16.2.0 (which is required by
exe:hgeometry-showcase from hgeometry-showcase-0.13.0, exe:hgeometry-devel
from hgeometry-devel-0.1.0.0 and others). See the build log above for details.

Found similar issue! https://gitlab.haskell.org/ghc/ghc/-/issues/14637

noinia commented 11 months ago

Thanks for your interest in HGeometry! I'm currently working on a rewrite of some of the primitives that should hopefully make the library faster and easier to use, so I haven't payed that much attention to the current master branch in a while.

Note that the hgeometry-showcase really just are some examples that David wrote at some point. You might simply want to disable them for now by commenting the hgeometry-showcase line in the cabal.project.