Fix the exit iteration padding.

• Removes padding for the exit_iteration when looping over cj.
• Calculates the padding correctly for the exit_iteration when looping over ci

Can you explain briefly why this is necessary?

I was incorrectly using the exit_iteration to check whether the number of particles to loop over was a multiple of VEC_SIZE. I forgot that exit_iteration was an index.

Ok. Is there a reason why it did not show up as a bug in the test suite? Or when pre-filling the caches with random garbage?

Yes, because I pad a whole vector worth of fake particles in the cache at the end of it.

merged

mentioned in commit 799d3b29

Running ./testPeriodicBC -n 6 -r 1 -d 0 -f standard -v 0
./testPeriodicBC.sh: line 3: 51489 Segmentation fault      (core dumped) ./testPeriodicBC -n 6 -r 1 -d 0 -f standard -v $v
Error Missing test output file
FAIL: testPeriodicBC.sh

Running ./testPeriodicBC -n 6 -r 1 -d 0.1 -f perturbed -v 0
./testPeriodicBCPerturbed.sh: line 3: 51587 Segmentation fault      (core dumped) ./testPeriodicBC -n 6 -r 1 -d 0.1 -f perturbed -v $v
Error Missing test output file
FAIL: testPeriodicBCPerturbed.sh

You could try af5bffa0.

I think I've found the problem. I thought I was fixing a problem that didn't exist in the ci loop. exit_iteration_align needs to be a multiple of VEC_SIZE not the number of particles looped over. I will just reverse that change and it should be fine...