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Without libsuitesparse-dev, performance degrades severely without warning #971

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gaschler opened this issue Mar 9, 2018 · 1 comment
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Without libsuitesparse-dev, performance degrades severely without warning #971

gaschler opened this issue Mar 9, 2018 · 1 comment
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@gaschler
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gaschler commented Mar 9, 2018

When libsuitesparse-dev is not installed, (Ceres) optimization will take >100 times longer.
It would nice to warn about this.
@ojura
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ojura commented Mar 9, 2018

Ah, I remember running into this a year ago. That was my first PR:
#189

Ceres declares a SparseLinearAlgebraLibrary CMake component when it's built against SuiteSparse, CXSparse or EigenSparse (see here). Seems like not using SuiteSparse results in slow optimization? Then we can change that line to require SuiteSparse exactly.

ojura added a commit to ojura/cartographer that referenced this issue Mar 9, 2018
@ojura
Require Ceres built against SuiteSparse
478a9a9 
Fixes cartographer-project#971.
@ojura ojura mentioned this issue Mar 9, 2018
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wally-the-cartographer pushed a commit that referenced this issue Mar 9, 2018
@ojura @wally-the-cartographer
Require Ceres built against SuiteSparse (#972)
e110935 
Fixes #971.
@gaschler gaschler mentioned this issue Apr 5, 2018
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