https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125446
--- Comment #5 from bill <w.langdon at cs dot ucl.ac.uk> ---
Some progress:-)
I have tried another computer (the same operating system etc)
but far more memory (1.5 TB).
On the big memory computer example min6.cpp compiles ok.
MemTotal: 1584282756 kB
We still the same problem on the computer with only 128GB
MemTotal: 131110376 kB
I logged top every ten seconds whilst on the big memory
and nothing leaps out:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3643782 ucacbbl 20 0 2896324 2.2g 18408 R 53.1 0.1 0:05.36 cc1plus
3643782 ucacbbl 20 0 4638528 3.9g 18408 R 99.1 0.3 0:15.36 cc1plus
3643782 ucacbbl 20 0 7017892 6.2g 18408 R 99.5 0.4 0:25.39 cc1plus
3643782 ucacbbl 20 0 6885428 6.1g 18856 R 99.5 0.4 0:35.42 cc1plus
3643782 ucacbbl 20 0 10.5g 9.8g 19048 R 99.4 0.7 0:45.44 cc1plus
3643782 ucacbbl 20 0 9.8g 9.3g 19560 R 99.5 0.6 0:55.47 cc1plus
3643782 ucacbbl 20 0 11.8g 11.2g 19816 R 99.5 0.7 1:05.50 cc1plus
3643782 ucacbbl 20 0 15.4g 14.7g 20648 R 99.6 1.0 1:15.53 cc1plus
3643782 ucacbbl 20 0 20.1g 17.8g 20708 R 99.5 1.2 1:25.56 cc1plus
3643782 ucacbbl 20 0 20.0g 19.2g 20708 R 99.4 1.3 1:35.58 cc1plus
3643782 ucacbbl 20 0 21.0g 20.2g 20836 R 99.5 1.3 1:45.61 cc1plus
3643782 ucacbbl 20 0 17.8g 17.1g 21284 R 99.5 1.1 1:55.64 cc1plus
But if I try the same commands on the 128GB computer I get
(still get error min6.cpp:6000050: internal compiler error: Segmentation fault)
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
35188 ucacbbl 20 0 2603064 1.3g 8280 R 18.1 1.0 0:01.81 cc1plus
35188 ucacbbl 20 0 4680320 3.9g 17952 R 99.9 3.2 0:11.82 cc1plus
35189 ucacbbl 20 0 3964928 3.3g 17864 R 88.7 2.6 0:08.88 cc1plus
35189 ucacbbl 20 0 7017824 6.2g 17864 R 99.9 4.9 0:18.88 cc1plus
35214 ucacbbl 20 0 4098060 3.4g 17824 R 94.1 2.7 0:09.43 cc1plus
35214 ucacbbl 20 0 4910440 4.2g 17824 R 99.9 3.3 0:19.43 cc1plus
35214 ucacbbl 20 0 4910440 4.2g 17824 R 100.0 3.3 0:29.44 cc1plus
35214 ucacbbl 20 0 4910440 4.2g 17824 R 99.8 3.3 0:39.44 cc1plus
35214 ucacbbl 20 0 4910440 4.2g 17824 R 100.0 3.3 0:49.45 cc1plus
35218 ucacbbl 20 0 3596012 2.9g 17872 R 73.1 2.3 0:07.32 cc1plus
35218 ucacbbl 20 0 5944736 5.2g 17872 R 99.9 4.1 0:17.32 cc1plus
Note smaller RES memory.
Note VIRT memory very different.
Note change of PID.
The big memory machine is much more popular, so it has more user load.
I am not sure that this helps. Good to know there is a machine here
which can compile it. But it is not clear to me why one is ok but
the other is not.
Best wishes
Bill
