[Nauty] nauty&Traces version 2.6r6 released
Brendan McKay
brendan.mckay at anu.edu.au
Wed Jul 20 14:31:00 AEST 2016
Version 2.6r6 is available from the web pages.
Changes:
1. Fixed a rare bug in Traces. Note that the canonical labelling may
have changed. In general, neither nauty nor Traces guarantees that the
canonical labelling remains the same between versions, as that would
prevent us from improving them. The canonical labelling of nauty has
not changed since version 2.6r1.
2. Fixed shortg for digraphs. The sparse and Traces versions for
digraphs and all versions for undirected graphs were not affected.
3. Fixed home directory determination in sumlines (which probably
impacted nobody ever).
4. Disabled automatic popcnt instruction selection for PowerPC processors.
Thanks to Murad Banaji, David Binderman and Jerry James for reporting
problems.
Brendan and Adolfo.
http://users.cecs.anu.edu.au/~bdm/nauty/
http://pallini.di.uniroma1.it/
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