I had been worried that on a computer with limited capabilities, interruption of the computations was more likely to occur during the lengthy run time, and hoped to prepare for it. I then discovered that I can hibernate Ubuntu, and am thinking of using it instead of Fedora, and have also been advised that the use of checkpoints is another alternative. (In qc0-mclachlan, I note the provided code segment, but the code segment includes another line with the value 55552. Would this generally be a good value on a computer of considerably different architecture?)

In any case, I would still be interested in trying to determine why Fedora does not compile Cactus properly for me. It goes pretty far before it terminates. I think I can collect the output in a text file, since inline text would be overwhelming. What would be the best procedure for submitting this information?