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optimize: make function converger an interface (#728)

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* optimize: make function converger an interface

Fixes #488.
Updates #677.
This commit is contained in:
Brendan Tracey
2018-12-16 11:37:46 +01:00
committed by GitHub
parent 004553317c
commit 44a6721e0d
8 changed files with 78 additions and 37 deletions
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8
optimize/unconstrained_test.go
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@@ -1164,16 +1164,18 @@ func testLocal(t *testing.T, tests []unconstrainedTest, method Method) {
settings.Recorder = nil
if method != nil && method.Needs().Gradient {
// Turn off function convergence checks for gradient-based methods.
settings.FunctionConverge = nil
settings.Converger = NeverTerminate{}
} else {
if test.fIter == 0 {
test.fIter = 20
}
settings.FunctionConverge.Iterations = test.fIter
c := settings.Converger.(*FunctionConverge)
c.Iterations = test.fIter
if test.fAbsTol == 0 {
test.fAbsTol = 1e-12
}
settings.FunctionConverge.Absolute = test.fAbsTol
c.Absolute = test.fAbsTol
settings.Converger = c
}
if test.gradTol == 0 {
test.gradTol = 1e-12