Dear Nektar group:
    
I installed a serial version of Nektar++_4.3.3 . 
When I ran ctest, the 13th test showed the following messages, and then it looked like no response or to be paused.


      Start  13: StdRegions_StdProject2D_Quad_Orth_P6_Q7
      13: Test command: /home/sk1/nektar/build/tests/Tester "/home/sk1/nektar/library/Demos/StdRegions/Tests/StdProject2D_Quad_Orth_P6_Q7.tst"
      13: Test timeout computed to be: 9.99988e+06


When I reduced the order by replacing "4 1 1 6 6 7 7" with "4 1 1 4 4 7 7"  in the file "StdProject2D_Quad_Orth_P6_Q7.tst", the 13th test passed.
After trying many times ,I found order1>4 would lead to this trouble.

Moreover ,a tutorial case "basics-advection-diffusion" encountered similar problem.  In the file "ADR_conditions.xml", NUMMODES>4 for 
COMPOSITE="C[2]" would lead to problems. I got the messages, and it looked like no response.

ADRSolver ADR_mesh_aligned.xml ADR_conditions.xml
=======================================================================
                EquationType: UnsteadyAdvection
                Session Name: ADR_mesh_aligned
                Spatial Dim.: 2
          Max SEM Exp. Order: 5
              Expansion Dim.: 2
              Riemann Solver: Upwind
              Advection Type: 
             Projection Type: Discontinuous Galerkin
                   Advection: explicit
               AdvectionType: WeakDG
                   Diffusion: explicit
                   Time Step: 0.001
                No. of Steps: 1000
         Checkpoints (steps): 100
            Integration Type: ClassicalRungeKutta4
=======================================================================
Initial Conditions:

I noticed that quadrilateral mesh was used in above two problems . The 13th test used quadrilateral mesh, while the "basics-advection-diffusion" case 
used multi-region mesh (region 2 was quadrilateral, region 1 and 3 was triangle ), and the NUMMODES>4 for quadrilateral region would lead to problems.

Why?
How to fix it?

Thanks.

SONG Ke