Discussion related to cado-nfs

[Christophe Clavier <christophe.clavier@unilim.fr>]

Hello,

The freerel step of the factorization of a c214 has produced an error.

Here are the list lines of the output after the polynomial selection:

Info:Generate Factor Base: Starting
Info:Generate Factor Base: Finished
Info:Generate Factor Base: Total cpu/real time for makefb: 867.01/858.984
Info:Generate Free Relations: Starting
Warning:Command: Process with PID 5846 finished with return code 1
Error:Generate Free Relations: Program run on server failed with exit code 1
Error:Generate Free Relations: Command line was: /home/clavip01/math/cado/build/opn/sieve/freerel -poly ./tmp/A_2340_0793.c214.poly -renumber ./tmp/A_2340_0793.c214.renumber.gz -lpb0 34 -lpb1 35 -out ./tmp/A_2340_0793.c214.freerel.gz -t 12 > ./tmp/A_2340_0793.c214.freerel.stdout.1 2> ./tmp/A_2340_0793.c214.freerel.stderr.1
Error:Generate Free Relations: Stderr output (last 10 lines only) follow (stored in file ./tmp/A_2340_0793.c214.freerel.stderr.1):
Error:Generate Free Relations:  # Warning: parameter verbose_flags is checked by this program but is undocumented.
Error:Generate Free Relations:  Error, p_r_values_t is too small to store ideals, recompile with FLAGS_SIZE="-DSIZEOF_P_R_VALUES=8"
Error:Generate Free Relations:
Traceback (most recent call last):
  File "../../cado-nfs.py", line 122, in <module>
    factors = factorjob.run()
  File "../../scripts/cadofactor/cadotask.py", line 5779, in run
    last_status, last_task = self.run_next_task()
  File "../../scripts/cadofactor/cadotask.py", line 5854, in run_next_task
    return [task.run(), task.title]
  File "../../scripts/cadofactor/cadotask.py", line 2923, in run
    raise Exception("Program failed")
Exception: Program failed

But actually it seems that I already compiled with this flag. Here are the last lines of local.sh :

############################################################
# For big factorizations, increase the size of variable.
# If you want to use large prime bound > 32, uncomment the following line
#FLAGS_SIZE="-DSIZEOF_P_R_VALUES=8"
# If you want to be able to handle more than 2^32 ideals in your factor base or
# have more than 2^32 relations (for large prime bound > 35 or 36), uncomment
# the following line
FLAGS_SIZE="-DSIZEOF_P_R_VALUES=8 -DSIZEOF_INDEX=8"

Maybe I am wrong? How to check whether the compilation indeed took this flag into account?

Thanks

Christophe