make check failed on test/check_nmt

[ittpmichael]

Hi,

I have built NaMaster with these following packages provided by OpenHPC repo:

• gnu8/8.3.0 (GCC)
• mvapich2/2.3, openmpi3/3.1.3
• fftw/3.3.8
• gsl/2.5
• libsharp compiled with either mvapich2 or openmpi3

and with healpix.x86_64 and chealpix.x86_64 from epel repo. The OS is CentOS7 (3.10.0-957.el7.x86_64).

The make check processes are failed on

TEST 34/66 nmt:bins_f_ell [FAIL]
  ERR: test/nmt_test_bins.c:30  expected 5.252e+05, got 5.252e+05 (diff -1.164e-10, tol 1.000e-10)

[damonge]

sorry for the delay @ittpmichael . This seems like a very weird floating point error that would be difficult to track down... I suggest to ignore this. I'll just raise the tolerance a bit on this one. Thanks a lot!

[damonge]

Solved by #71

[ittpmichael]

@damonge I can reproduce this error and I finally know what causes this make check to be failed. This is because I set CFLAGS=-Ofast. For other flags like -O4 or -O3 are working fine.

[damonge]

Aha, good detective work! Thanks a lot for reporting this!