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Old 2020-08-06, 13:51   #1
RedGolpe's Avatar
Aug 2006
Monza, Italy

73 Posts
Default CADO-NFS error (exit code -9)

Hi all, I am factoring a C143 but the program stopped in error, with no mention of what kind. Here are the last few lines diplayed.

Info:Square Root: Creating file of (a,b) values
Warning:Command: Process with PID 1917 finished with return code -9
Error:Square Root: Program run on server failed with exit code -9
Error:Square Root: Command line was: /home/ubuntu/cado-nfs/build/ip-172-31-36-46/sqrt/sqrt -poly nfsdata/c145.poly -prefix nfsdata/c145.dep.gz -dep 0 -t 8 -side0 -side1 -gcd > nfsdata/c145.sqrt.stdout.4 2> nfsdata/c145.sqrt.stderr.4
Error:Square Root: Stderr output (last 10 lines only) follow (stored in file nfsdata/c145.sqrt.stderr.4):
Error:Square Root:      Alg(1): starting level 3 at cpu=1962.67s (wct=257.15s), 8 values to multiply
Error:Square Root:      Alg(7): level 1 took cpu=147.07s (wct=18.52s)
Error:Square Root:      Alg(7): starting level 2 at cpu=1964.10s (wct=257.33s), 16 values to multiply
Error:Square Root:      Alg(4): level 2 took cpu=167.89s (wct=21.14s)
Error:Square Root:      Alg(4): starting level 3 at cpu=1964.98s (wct=257.44s), 8 values to multiply
Error:Square Root:      Alg(2): level 2 took cpu=167.94s (wct=21.15s)
Error:Square Root:      Alg(2): starting level 3 at cpu=1967.93s (wct=257.81s), 8 values to multiply
Error:Square Root:      Alg(3): level 2 took cpu=166.18s (wct=20.93s)
Error:Square Root:      Alg(3): starting level 3 at cpu=1982.80s (wct=259.69s), 8 values to multiply
Error:Square Root:
Traceback (most recent call last):
  File "cado-nfs/", line 122, in <module>
    factors =
  File "cado-nfs/scripts/cadofactor/", line 5957, in run
    last_status, last_task = self.run_next_task()
  File "cado-nfs/scripts/cadofactor/", line 6049, in run_next_task
    return [, task.title]
  File "cado-nfs/scripts/cadofactor/", line 4940, in run
    raise Exception("Program failed")
Exception: Program failed
I resumed the computation and had the same issue. Can it just be that not enough memory is available? Thank you in advance.
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