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Stop mucking about with THREAD_MULTIPLE

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Peter Boyle
2026-08-28 07:06:45 -04:00
parent 2264afda84
commit 27e32b1633
6 changed files with 72 additions and 44 deletions
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systems/Frontier/smoother_modes.job
+2 -4
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@@ -102,10 +102,8 @@ export PolyRecordIters=8 # outer steps recorded
export PolyRecordStart=8 # ...starting here: the early-step polynomials are unrepresentative (M3)
export PolyRecordSelect=last # replay ONE recorded call's polynomial (PB: every individual call beats the coefficient mean)
export PolyRefresh=5 # re-record every 5 outer steps: BFM BfmHDCG.C:2243, k%5==1 -> LdopM1MirsPolyRecord, single call, replayed 4 steps
# Inverse ring-rate hypotheses, ONE AT A TIME: (1) OMP_NUM_THREADS=1 (set above);
# (2) if (1) fails, uncomment the two lines below (harness ran 62 s with these).
#export MPICH_MAX_THREAD_SAFETY=multiple
#export GRID_MPI_THREAD_MULTIPLE=1
# Inverse ring-rate hypotheses (2026-08-27): OMP threads and MPI thread level both NIL
# (schur2d_env.job); the cause was partial ring participation -> SCHUR2D_LEAF_SPAN.
export PolyVerbose=1 # frozen smoothers print |r_m|/|r_0| per call: separates 'bad polynomial' from 'linear V-cycle stagnates the outer'
export FineChebLo=3.0 # harvested |R|<0.1 edge / PowerIteration edge x1.05
export FineChebHi=137.0