set up things for multithreading

pydemo/euler/main.py

+import mpi4py.rc
+mpi4py.rc.threaded = True
 from dune.fem import parameter
 from dune.femdg.testing import run
 
-from euler import sod as problem
-# from euler import vortex as problem
+# from euler import sod as problem
+from euler import vortex as problem
 # from euler import leVeque as problem
 # from euler import radialSod3 as problem
 
@@ -17,4 +19,4 @@ primitive=lambda Model,uh: {"pressure":Model.toPrim(uh)[2]}
 run(*problem(),
         startLevel=0, polOrder=2, limiter="default",
         primitive=primitive, saveStep=0.1, subsamp=2,
-        dt=None)
+        dt=None,nThreads=4,grid="yasp")

pydemo/euler/paramBase

@@ -6,7 +6,7 @@ fem.parallel.numberofthreads: 1
 # write diagnostics file (
 # 0 don't, 1 only speedup file, 2 write all runfiles 
 # 3 only write 0, others at end, 4 all files at end for scaling) 
-fem.parallel.diagnostics: 1
+fem.parallel.diagnostics: 4
 # if true non-blocking communication is enabled
 femdg.nonblockingcomm: true
 fem.threads.verbose: true

python/dune/femdg/testing.py

@@ -9,9 +9,9 @@ from ufl import dot, SpatialCoordinate
 def run(Model, initial, x0,x1,N, endTime, name, exact,
         polOrder, limiter="default", startLevel=0,
         primitive=None, saveStep=None, subsamp=0,
-        dt=None):
+        dt=None,grid="yasp",nThreads=1):
     domain   = cartesianDomain(x0,x1,N,periodic=[False,False])
-    grid     = create.grid("alucube",domain)
+    grid     = create.grid(grid,domain)
     grid.hierarchicalGrid.globalRefine(startLevel)
     dimR     = Model.dimension
     t        = 0
@@ -20,7 +20,7 @@ def run(Model, initial, x0,x1,N, endTime, name, exact,
 
     space = create.space("dgonb", grid, order=polOrder, dimrange=dimR)
     u_h = space.interpolate(initial, name='u_h')
-    operator = createFemDGSolver( Model, space, limiter=limiter )
+    operator = createFemDGSolver( Model, space, limiter=limiter, nThreads=nThreads )
     operator.applyLimiter( u_h );
     print("number of elements: ",grid.size(0),flush=True)
     if saveStep is not None: