Multiple dense linear algebra backends.
1. When a LAPACK implementation is present, then
DENSE_QR, DENSE_NORMAL_CHOLESKY and DENSE_SCHUR
can use it for doing dense linear algebra operations.
2. The user can switch dense linear algebra libraries
by setting Solver::Options::dense_linear_algebra_library_type.
3. Solver::Options::sparse_linear_algebra_library is now
Solver::Options::sparse_linear_algebra_library_type to be consistent
with all the other enums in Solver::Options.
4. Updated documentation as well as Solver::Summary::FullReport
to reflect these changes.
Change-Id: I5ab930bc15e90906b648bc399b551e6bd5d6498f
diff --git a/internal/ceres/types.cc b/internal/ceres/types.cc
index 164185e..a97f1a5 100644
--- a/internal/ceres/types.cc
+++ b/internal/ceres/types.cc
@@ -101,7 +101,6 @@
}
}
-
bool StringToSparseLinearAlgebraLibraryType(
string value,
SparseLinearAlgebraLibraryType* type) {
@@ -111,6 +110,25 @@
return false;
}
+const char* DenseLinearAlgebraLibraryTypeToString(
+ DenseLinearAlgebraLibraryType type) {
+ switch (type) {
+ CASESTR(EIGEN);
+ CASESTR(LAPACK);
+ default:
+ return "UNKNOWN";
+ }
+}
+
+bool StringToDenseLinearAlgebraLibraryType(
+ string value,
+ DenseLinearAlgebraLibraryType* type) {
+ UpperCase(&value);
+ STRENUM(EIGEN);
+ STRENUM(LAPACK);
+ return false;
+}
+
const char* TrustRegionStrategyTypeToString(TrustRegionStrategyType type) {
switch (type) {
CASESTR(LEVENBERG_MARQUARDT);
@@ -318,4 +336,21 @@
return false;
}
+bool IsDenseLinearAlgebraLibraryTypeAvailable(
+ DenseLinearAlgebraLibraryType type) {
+ if (type == EIGEN) {
+ return true;
+ }
+ if (type == LAPACK) {
+#ifdef CERES_NO_LAPACK
+ return false;
+#else
+ return true;
+#endif
+ }
+
+ LOG(WARNING) << "Unknown dense linear algebra library " << type;
+ return false;
+}
+
} // namespace ceres
