Appion

After compiling, I noticed that on my AMD machines there was no artifact, but on the Intel machines had an artifact.

I looked at my compile flags and noticed that I had ENABLE_OPTERON set to ON. So, I disabled it and now I do not have any artifacts. I will continue to test.

I'm taking a look at this as well now. Do you have anything else to add since the last update? Does the opteron flag come into play from the eman build system?

Has anyone tried compiling and linking their own fftw2.15? I see that a low pass filter reproducibly creates the artifact in affected systems.

Hi Craig, the experiment I did was with opteron on, artifacts on my intel, with opteron off, no artifacts any where. We have been running this EMAN1 for 22 days with no problems.

I compiled it with following the standard procedure to compile (per EMAN website) I assume it used my local fftw??? It is like using ccmake as a gui instead of ./configure, but then it is make and make install.

Coolio. What are you running? I'm going to try it out on Ubuntu 12.04.
Did you edit out the Opteron flag from the configure scripts, or from the generated make files?

I set the flag in the "ccmake" program, its a TUI for setting the flags.

Is everyone happy? I've got mine (Intel64) binary daily-built work on CentOS 6.2 after a yum update. If we all got it installed properly one way or the other, I will close this issue.