Py_move_global test fails on 3.1.x

[hmenke]

Prerequisites

• Please check that a similar issue isn't already filed: https://github.com/issues?q=is%3Aissue+user%3Atriqs

Description

╔╦╗╦═╗╦╔═╗ ╔═╗  ┌─┐┌┬┐┬ ┬┬ ┬┌┐ 
 ║ ╠╦╝║║═╬╗╚═╗  │   │ ├─┤└┬┘├┴┐
 ╩ ╩╚═╩╚═╝╚╚═╝  └─┘ ┴ ┴ ┴ ┴ └─┘

The local Hamiltonian of the problem:
-1.05*c_dag('dn',0)*c('dn',0) + -1.05*c_dag('dn',1)*c('dn',1) + -0.95*c_dag('up',0)*c('up',0) + -0.95*c_dag('up',1)*c('up',1) + 1.4*c_dag('dn',0)*c_dag('dn',1)*c('dn',1)*c('dn',0) + 0.2*c_dag('dn',0)*c_dag('up',0)*c('up',1)*c('dn',1) + 2*c_dag('dn',0)*c_dag('up',0)*c('up',0)*c('dn',0) + 1.6*c_dag('dn',0)*c_dag('up',1)*c('up',1)*c('dn',0) + 0.2*c_dag('dn',0)*c_dag('up',1)*c('up',0)*c('dn',1) + 0.2*c_dag('dn',1)*c_dag('up',0)*c('up',1)*c('dn',0) + 1.6*c_dag('dn',1)*c_dag('up',0)*c('up',0)*c('dn',1) + 2*c_dag('dn',1)*c_dag('up',1)*c('up',1)*c('dn',1) + 0.2*c_dag('dn',1)*c_dag('up',1)*c('up',0)*c('dn',0) + 1.4*c_dag('up',0)*c_dag('up',1)*c('up',1)*c('up',0)
Using autopartition algorithm to partition the local Hilbert space
Found 14 subspaces.

Warming up ...
matrix  = 
[[2.90058,-0.000125211,-2.92902e-06,7.32735e-12,-2.15932e-10,-3.33955e-10,3.4276e-10,-4.38244e-12,4.27595e-11,1.27791e-12,4.52473e-11,4.39036e-11,3.44803e-11,4.09449e-11,1.34152e-10,-1.8815e-10,-3.28041e-11,1.49995e-10,-2.2649e-10,7.53578e-11,1.78511e-12,1.82732e-10,-6.49204e-11,-3.47259e-10,6.50096e-11,-7.24733e-10,-3.00783e-09,-7.71016e-09,-1.23136e-05,-2.66772e-05,-4.89702e-05,-0.00147594,-0.00879645,-0.241694]
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Warning : det_manip deviation above warning threshold check N = 34  
   max(abs(M^-1 - M^-1_true)) = 0.0134906
   precision*max(abs(M^-1 + M^-1_true)) = 6.60454e-08 
mc_generic: Exception occurs on node 0
Triqs runtime error
    at /home/menke/Code/triqs/triqs_3.1.x/install/include/triqs/det_manip/det_manip.hpp : 1168

Error : det_manip deviation above critical threshold !! 
Exception was thrown on node

Steps to Reproduce

1. Build TRIQS 3.1.x
2. Execute TRIQS 3.1.x tests (all passing)
3. Build CTHYB 3.1.x
4. Execute CTHYB 3.1.x tests (Py_move_global fails)

Expected behavior: Tests pass

Actual behavior: Py_move_global fails

Versions

You are using triqs_cthyb git hash e2e3fc892d6c7e7be5f4168e7207f5ef516a323c based on triqs git hash 3c27b35ffbdf0309989e85883344b91c39a98567

Formatting

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Additional Information

Any additional information, configuration or data that might be necessary to reproduce the issue.

[hmenke]

Ah, this is another incarnation of TRIQS/maxent#24. Setting OPENBLAS_CORETYPE=haswell makes Py_move_global pass, but then Py_slater suddenly starts failing with

Traceback (most recent call last):
  File "/home/menke/Code/triqs/cthyb_3.1.x/test/python//slater.py", line 62, in <module>
    assert_block_gfs_are_close(Results["G_tau"], S.G_tau)
  File "/home/menke/Code/triqs/triqs_3.1.x/install/lib/python3.6/site-packages/triqs/utility/comparison_tests.py", line 39, in assert_block_gfs_are_close
    assert_gfs_are_close(x, y, precision)
  File "/home/menke/Code/triqs/triqs_3.1.x/install/lib/python3.6/site-packages/triqs/utility/comparison_tests.py", line 32, in assert_gfs_are_close
    assert_arrays_are_close(a.data, b.data, precision)
  File "/home/menke/Code/triqs/triqs_3.1.x/install/lib/python3.6/site-packages/triqs/utility/comparison_tests.py", line 24, in assert_arrays_are_close
    assert  d< precision, "Arrays are different. Difference is %s.\n %s \n\n --------- \n\n %s"%(d,a,b)
AssertionError: Arrays are different. Difference is 1.19244430152321e-06.