$ cd Chudnovsky-Pi/src/extra
$ g++ -O3 -DTEST6 -fopenmp prime_test.cpp -l gmp -o prime6_test -Wno-attributes

$ time ./prime6_test
Calculating 2^n-1 for n=1257787...
Calculating 2^n-1 for n=1398269...
Calculating 2^n-1 for n=2976221...
Calculating 2^n-1 for n=3021377...
Calculating 2^n-1 for n=6972593...
Calculating 2^n-1 for n=13466917...
Calculating 2^n-1 for n=20996011...
Calculating 2^n-1 for n=24036583...
Calculating 2^n-1 for n=25964951...
Calculating 2^n-1 for n=30402457...
Calculating 2^n-1 for n=32582657...
Calculating 2^n-1 for n=37156667...
Calculating 2^n-1 for n=42643801...
Calculating 2^n-1 for n=43112609...
Calculating 2^n-1 for n=57885161...
total failures 0

real  0m11.722s
user  0m11.626s
sys   0m0.087s