Since Ceres is moving to using GitHub for issues, and the Google
Code URL in the current copyright header will soon become invalid,
update all the headers.
Change-Id: I1fce70375d1bcf098591f07b4d8f01a5c1e0789c
For historical reasons we had a "using namespace std;" in port.h. This
is generally a bad idea. So removing it and along the way doing a bunch
of cpplint cleanup.
Change-Id: Ia125601a55ae62695e247fb0250df4c6f86c46c6
Trade a small amount of memory to improve the cache coherency of
the SymmetricRightMultiply operation.
The resulting code leads to a 10-20% speedup in the linear solver
end to end.
Change-Id: I8ab2fe152099e849b211b5b19e4ef9f03d8e7f1c
This class is used in the SchurJacobiPreconditioner for
storing the preconditioner matrix. Using it speeds up
the computation of the preconditioner by ~15% due to
the elimination of a hash table lookup.
Change-Id: Iba2b34aad0d9eb9bcb7f6e6fad16aa416aac0d2a
overflow.
Even though the return value of this function is a long int, the
computation happens with three ints, which causes an overflow before
the upgrade happens.
The fix is to upgrade the constant used int his computation to be a
long int, which causes the computation to be done in longs instead of
ints.
A test has been added to verify that the fix works.
Change-Id: Ibb0aef877125bb37ca28754cb07b8e1627fd1d5a
Keir Mierle