Hi,<br>I noticed recently that I've been getting different results when running reconstruction multiple times on the same file. It seems like that for a small number of events, the number of particles reconstructed varies. I think this problem will occur with any input, but I've uploaded one particular hddm file where I've seen the problem (<a href="http://www-meg.phys.cmu.edu/wilevine/hdgeant_smeared.hddm">http://www-meg.phys.cmu.edu/wilevine/hdgeant_smeared.hddm</a> ). I think the simplest way to see the problem is to run the reconstruction with the phys_tree plugin twice (i.e.<br>
<span style="font-family: courier new,monospace;">hd_root -PPLUGINS=phys_tree hdgeant_smeared.hddm -o output.1.root</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">hd_root -PPLUGINS=phys_tree hdgeant_smeared.hddm -o output.2.root</span><br>
) and compare the output. In particular, differences should be seen in the Npip, Nphoton, etc. histograms.<br><br>For the record I'm using svn revision 7974 and the problem seems to occur in both SIMD and non-SIMD builds.<br>
<br>If anyone can confirm or diagnose this issue, that would be helpful.<br><br>Will