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Dear all,

I have been running nektar++-5.0.2 and trying the 3D stability analysis for the channel flow

as described in the specific nektar tutorial. I used the session file "PPF_R10000_3D.xml"

provided under the /Tests subdirectory of IncNavierStokesSolver, and obtained the same

complex eigenvalues 0.518448+/-26.6405i as the tutorial when I ran the problem on

a single processor. However, when I executed the same session on multiple (4) processors,

the two eigenvalues upon convergence were different, namely -6.957 +/-1.34189i.

The corresponding eigenvectors also looked completely different than the results shown

in the tutorial file. I experienced no such problems, however, when I ran the stability

analysis with the "MultipleModes" option. Could there be an issue with the "SingleMode"

option on multiple processors? I would be very grateful for your assistance.

Best regards,

Cheng