Help to install and factor large number - Page 3

jasonp · 2016-07-03, 02:37

Code for Msieve's ECM driver

This does all the ECM and P+-1 for the 15-digit level unconditionally, and if you pass the '-e' flag to the demo binary it will perform a ladder of ECM and P+-1 up to the 40-digit factors. The ladder cuts off when it is faster to switch to another method.

craneduitre · 2016-07-10, 08:13

I did a "make" in the gmp-ecm folder and at some point it came up with this:

Quote:

ld: warning: ignoring file ./.libs/libecm.a, file was built for archive which is not the architecture being linked (x86_64): ./.libs/libecm.a
Undefined symbols for architecture x86_64:
"___ecm_cputime", referenced from:
_main in ecm-main.o
"_ecm_clear", referenced from:
_main in ecm-main.o
"_ecm_factor", referenced from:
_main in ecm-main.o
"_ecm_init", referenced from:
_main in ecm-main.o
"_ecm_version", referenced from:
_main in ecm-main.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [ecm] Error 1
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2

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2016-07-03, 02:37	#23
jasonp Tribal Bullet Oct 2004 3,541 Posts	Code for Msieve's ECM driver This does all the ECM and P+-1 for the 15-digit level unconditionally, and if you pass the '-e' flag to the demo binary it will perform a ladder of ECM and P+-1 up to the 40-digit factors. The ladder cuts off when it is faster to switch to another method.