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$ cd Chudnovsky-Pi/src/extra
$ g++ -O3 -DTEST6 -fopenmp prime_test.cpp -l gmp -o prime6_test -Wno-a
+ttributes
...
real  0m11.722s
user  0m11.626s
sys   0m0.087s

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$ g++ -O3 -DPARALLEL -DTEST6 -fopenmp prime_test.cpp -l gmp -o prime6_
+test -Wno-attributes

...
real  0m4.368s
user  0m11.966s
sys   0m0.134s

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$ cd Chudnovsky-Pi/src
$ make
$ make pi-gmp   # requires GMP
$ make pi-mpir  # requires MPIR
$ cd ../bin

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$ perl pi-hobo.pl 100000000 1 auto | md5sum
# start date = Thu Jul 28 17:50:15 2022
...
#   end date = Thu Jul 28 17:50:27 2022

969bfe295b67da45b68086eb05a8b031  -

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$ ./pi-gmp 100000000 1 auto | md5sum
# start date = Thu Jul 28 17:54:00 2022
...
#   end date = Thu Jul 28 17:54:12 2022

969bfe295b67da45b68086eb05a8b031  -