What's is a CFD process?

I suddenly found my new iMac's CPU is quite busy with only 46% idle (while the one I am using in my office is quite idle --most of the time up to at least 80% or more unless I am doing something computaionally intensive). And I found in the activity monitor that there is one single process that use up most of the resource, which is called CFD (446), with a parent process WindowServer. The monitor is showing that it is using somewhat 104% of the CPU, and I am worrying about this mysterious (to me) process--like whether it is a malware or spyware or something malign.
Thank you.

Thank you very much. But I didn't do anything computationally intensive (to me is to solve dynamic programming problems or do simulation) yesterday on my new iMac. But when I swtiched off the computer (rather than letting it sleep) last night, and turn it on again today, it seems it comes back to idle and the "cfd" process is gone. Maybe the problem lies in the fact that I installed lots of softwares yesterday: xcode, octave, R, aquaemacs, aquaterm, gnuplot etc, and there might be lots of compling or something like that going on (though most of the softwares I installed should be binary rather than source, but I am clueless on how the computer works in terms of installing).
Though I am still curious (and worried) to see what the "cfd" is.

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