here is the error messages that occur when running on the local cluster (compiled with intel compilers):

WARNING[L1,P0] (NaNChecker): There were 20094 NaN/Inf value(s) found in variable 'HYDROBASE::rho'
WARNING[L1,P1] (NaNChecker): There were 20782 NaN/Inf value(s) found in variable 'HYDROBASE::rho'
WARNING[L1,P0] (NaNChecker): There were 20094 NaN/Inf value(s) found in variable 'HYDROBASE::eps'
WARNING[L1,P1] (NaNChecker): There were 20782 NaN/Inf value(s) found in variable 'HYDROBASE::eps'
WARNING[L1,P0] (NaNChecker): There were 20094 NaN/Inf value(s) found in variable 'HYDROBASE::press'
WARNING[L1,P1] (NaNChecker): There were 20782 NaN/Inf value(s) found in variable 'HYDROBASE::press'
WARNING[L1,P0] (NaNChecker): There were 20094 NaN/Inf value(s) found in variable 'HYDROBASE::vel[0]'
WARNING[L1,P1] (NaNChecker): There were 20782 NaN/Inf value(s) found in variable 'HYDROBASE::vel[0]'
WARNING[L1,P0] (NaNChecker): There were 20094 NaN/Inf value(s) found in variable 'HYDROBASE::vel[1]'
WARNING[L1,P1] (NaNChecker): There were 20782 NaN/Inf value(s) found in variable 'HYDROBASE::vel[1]'
WARNING[L1,P0] (NaNChecker): There were 20094 NaN/Inf value(s) found in variable 'HYDROBASE::vel[2]'
WARNING[L1,P1] (NaNChecker): There were 20782 NaN/Inf value(s) found in variable 'HYDROBASE::vel[2]'
WARNING[L1,P0] (NaNChecker): There were 20094 NaN/Inf value(s) found in variable 'HYDROBASE::w_lorentz'
WARNING[L1,P1] (NaNChecker): There were 20782 NaN/Inf value(s) found in variable 'HYDROBASE::w_lorentz'
WARNING[L1,P0] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::dens'
WARNING[L1,P1] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::dens'
WARNING[L1,P0] (NaNChecker): There were 20094 NaN/Inf value(s) found in variable 'GRHYDRO::tau'
WARNING[L1,P1] (NaNChecker): There were 20782 NaN/Inf value(s) found in variable 'GRHYDRO::tau'
WARNING[L1,P0] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::scon[0]'
WARNING[L1,P1] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::scon[0]'
WARNING[L1,P0] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::scon[1]'
WARNING[L1,P1] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::scon[1]'
WARNING[L1,P0] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::scon[2]'
WARNING[L1,P1] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::scon[2]'
WARNING[L1,P3] (NaNChecker): There were 33853 NaN/Inf value(s) found in variable 'HYDROBASE::rho'
WARNING[L1,P6] (NaNChecker): There were 1179 NaN/Inf value(s) found in variable 'HYDROBASE::rho'
WARNING[L1,P7] (NaNChecker): There were 1261 NaN/Inf value(s) found in variable 'HYDROBASE::rho'
WARNING[L1,P5] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'HYDROBASE::rho'
WARNING[L1,P6] (NaNChecker): There were 1179 NaN/Inf value(s) found in variable 'HYDROBASE::eps'
WARNING[L1,P7] (NaNChecker): There were 1261 NaN/Inf value(s) found in variable 'HYDROBASE::eps'
WARNING[L1,P3] (NaNChecker): There were 33853 NaN/Inf value(s) found in variable 'HYDROBASE::eps'
WARNING[L1,P5] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'HYDROBASE::eps'
WARNING[L1,P7] (NaNChecker): There were 1261 NaN/Inf value(s) found in variable 'HYDROBASE::press'
WARNING[L1,P3] (NaNChecker): There were 33853 NaN/Inf value(s) found in variable 'HYDROBASE::press'
WARNING[L1,P6] (NaNChecker): There were 1179 NaN/Inf value(s) found in variable 'HYDROBASE::press'
WARNING[L1,P5] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'HYDROBASE::press'
WARNING[L1,P2] (NaNChecker): There were 33396 NaN/Inf value(s) found in variable 'HYDROBASE::rho'
WARNING[L1,P7] (NaNChecker): There were 1261 NaN/Inf value(s) found in variable 'HYDROBASE::vel[0]'
WARNING[L1,P3] (NaNChecker): There were 33853 NaN/Inf value(s) found in variable 'HYDROBASE::vel[0]'
WARNING[L1,P6] (NaNChecker): There were 1179 NaN/Inf value(s) found in variable 'HYDROBASE::vel[0]'
WARNING[L1,P2] (NaNChecker): There were 33396 NaN/Inf value(s) found in variable 'HYDROBASE::eps'
WARNING[L1,P7] (NaNChecker): There were 1261 NaN/Inf value(s) found in variable 'HYDROBASE::vel[1]'
WARNING[L1,P3] (NaNChecker): There were 33853 NaN/Inf value(s) found in variable 'HYDROBASE::vel[1]'
WARNING[L1,P6] (NaNChecker): There were 1179 NaN/Inf value(s) found in variable 'HYDROBASE::vel[1]'
WARNING[L1,P2] (NaNChecker): There were 33396 NaN/Inf value(s) found in variable 'HYDROBASE::press'
WARNING[L1,P7] (NaNChecker): There were 1261 NaN/Inf value(s) found in variable 'HYDROBASE::vel[2]'
WARNING[L1,P5] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'HYDROBASE::vel[0]'
WARNING[L1,P3] (NaNChecker): There were 33853 NaN/Inf value(s) found in variable 'HYDROBASE::vel[2]'
WARNING[L1,P6] (NaNChecker): There were 1179 NaN/Inf value(s) found in variable 'HYDROBASE::vel[2]'
WARNING[L1,P2] (NaNChecker): There were 33396 NaN/Inf value(s) found in variable 'HYDROBASE::vel[0]'
WARNING[L1,P7] (NaNChecker): There were 1261 NaN/Inf value(s) found in variable 'HYDROBASE::w_lorentz'
WARNING[L1,P5] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'HYDROBASE::vel[1]'
WARNING[L1,P3] (NaNChecker): There were 33853 NaN/Inf value(s) found in variable 'HYDROBASE::w_lorentz'
WARNING[L1,P2] (NaNChecker): There were 33396 NaN/Inf value(s) found in variable 'HYDROBASE::vel[1]'
WARNING[L1,P7] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::dens'
WARNING[L1,P6] (NaNChecker): There were 1179 NaN/Inf value(s) found in variable 'HYDROBASE::w_lorentz'
WARNING[L1,P5] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'HYDROBASE::vel[2]'
WARNING[L1,P4] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'HYDROBASE::rho'
WARNING[L1,P3] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::dens'
WARNING[L1,P2] (NaNChecker): There were 33396 NaN/Inf value(s) found in variable 'HYDROBASE::vel[2]'
WARNING[L1,P7] (NaNChecker): There were 1261 NaN/Inf value(s) found in variable 'GRHYDRO::tau'
WARNING[L1,P5] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'HYDROBASE::w_lorentz'
WARNING[L1,P6] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::dens'
WARNING[L1,P4] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'HYDROBASE::eps'
WARNING[L1,P3] (NaNChecker): There were 33853 NaN/Inf value(s) found in variable 'GRHYDRO::tau'
WARNING[L1,P2] (NaNChecker): There were 33396 NaN/Inf value(s) found in variable 'HYDROBASE::w_lorentz'
WARNING[L1,P5] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::dens'
WARNING[L1,P6] (NaNChecker): There were 1179 NaN/Inf value(s) found in variable 'GRHYDRO::tau'
WARNING[L1,P4] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'HYDROBASE::press'
WARNING[L1,P3] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::scon[0]'
WARNING[L1,P2] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::dens'
WARNING[L1,P5] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::tau'
WARNING[L1,P3] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::scon[1]'
WARNING[L1,P4] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'HYDROBASE::vel[0]'
WARNING[L1,P7] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::scon[0]'
WARNING[L1,P2] (NaNChecker): There were 33396 NaN/Inf value(s) found in variable 'GRHYDRO::tau'
WARNING[L1,P6] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::scon[0]'
WARNING[L1,P5] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::scon[0]'
WARNING[L1,P3] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::scon[2]'
WARNING[L1,P7] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::scon[1]'
WARNING[L1,P4] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'HYDROBASE::vel[1]'
WARNING[L1,P2] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::scon[0]'
WARNING[L1,P6] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::scon[1]'
WARNING[L1,P5] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::scon[1]'
WARNING[L1,P7] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::scon[2]'
WARNING[L1,P4] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'HYDROBASE::vel[2]'
WARNING[L1,P2] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::scon[1]'
WARNING[L1,P6] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::scon[2]'
WARNING[L1,P4] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'HYDROBASE::w_lorentz'
WARNING[L1,P5] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::scon[2]'
WARNING[L1,P2] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::scon[2]'
WARNING[L1,P4] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::dens'
WARNING[L1,P4] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::tau'
WARNING[L1,P4] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::scon[0]'
WARNING[L1,P4] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::scon[1]'
WARNING[L1,P4] (NaNChecker): There were 1 NaN/Inf value(s) found in variable 'GRHYDRO::scon[2]'
MPI: On host vives, Program /usus/va/vasme/cactus/Cactus/exe/cactus_ET_Tori_ID, Rank 7, Process 390844 received signal SIGFPE(8)


MPI: --------stack traceback-------
MPI: 
MPI: A problem internal to GDB has been detected,
MPI: further debugging may prove unreliable.
MPI: Quit this debugging session? (y or n) [answered Y; input not from terminal]
MPI: ../../gdb/dwarf2read.c:9825: internal-error: could not find partial DIE 0x5839d3e in cache [from module /proc/390844/exe]
MPI: 
MPI: A problem internal to GDB has been detected,
MPI: further debugging may prove unreliable.
MPI: Create a core file of GDB? (y or n) [answered Y; input not from terminal]

MPI: -----stack traceback ends-----
MPI: On host vives, Program /usus/va/vasme/cactus/Cactus/exe/cactus_ET_Tori_ID, Rank 7, Process 390844: Dumping core on signal SIGFPE(8) into directory /usus/va/vasme/cactus/Cactus
MPI: Program /usus/va/vasme/cactus/Cactus/exe/cactus_ET_Tori_ID, Rank 2, Process 390839: Core dump on signal SIGFPE(8) suppressed.
MPI: Program /usus/va/vasme/cactus/Cactus/exe/cactus_ET_Tori_ID, Rank 0, Process 390825: Core dump on signal SIGFPE(8) suppressed.
MPI: Program /usus/va/vasme/cactus/Cactus/exe/cactus_ET_Tori_ID, Rank 1, Process 390826: Core dump on signal SIGFPE(8) suppressed.
MPI: Program /usus/va/vasme/cactus/Cactus/exe/cactus_ET_Tori_ID, Rank 6, Process 390843: Core dump on signal SIGFPE(8) suppressed.
MPI: Program /usus/va/vasme/cactus/Cactus/exe/cactus_ET_Tori_ID, Rank 3, Process 390840: Core dump on signal SIGFPE(8) suppressed.
MPI: Program /usus/va/vasme/cactus/Cactus/exe/cactus_ET_Tori_ID, Rank 5, Process 390842: Core dump on signal SIGFPE(8) suppressed.
MPI: Program /usus/va/vasme/cactus/Cactus/exe/cactus_ET_Tori_ID, Rank 4, Process 390841: Core dump on signal SIGFPE(8) suppressed.
MPI: MPI_COMM_WORLD rank 1 has terminated without calling MPI_Finalize()
MPI: aborting job
MPI: Received signal 9


i also made a run with export OMP_NUM_THREADS=1 , showing the same errors as before...

the compiler options from the optionlist are:

imac:

CPP = /usr/local/bin/cpp
FPP = /usr/local/bin/cpp
CC  = /Users/vass/programs/opt/openMPI-gcc4.7/bin/mpicc
CXX = /Users/vass/programs/opt/openMPI-gcc4.7/bin/mpicxx
F77 = /Users/vass/programs/opt/openMPI-gcc4.7/bin/mpif77
F90 = /Users/vass/programs/opt/openMPI-gcc4.7/bin/mpif90

AR      = ar 
ARFLAGS = ruv 

# -fmudflapth does not work with gcc 4.2.0
# -march=native prevents undefined references to ___sync_fetch_and_add_4
# -malign-double leads to crashes in Fortran I/O
CPPFLAGS = -fPIC #-DOMPI_SKIP_MPICXX -DTAU_VERSION_NUMBER=21803
FPPFLAGS = -traditional
CFLAGS   = -march=corei7 -mtune=corei7 -pipe -g3 -m128bit-long-double  -std=gnu99
CXXFLAGS = -march=corei7 -mtune=corei7 -pipe -g3  -O2 -DNDEBUG -pedantic -fpermissive #-Wall -W -Wundef -Wshadow -Wcast-qual -Wcast-align -Wconversion -Winline -Wabi -Wold-style-cast -Woverloaded-virtual
F77FLAGS = -march=corei7 -mtune=corei7 -pipe -g3 -m128bit-long-double  -fcray-pointer -ffixed-line-length-none
F90FLAGS = -march=corei7 -mtune=corei7 -pipe -g3 -m128bit-long-double  -fcray-pointer -ffixed-line-length-none

LDFLAGS = -framework Accelerate -lgfortran

C_LINE_DIRECTIVES = yes
F_LINE_DIRECTIVES = yes

REAL16_KIND = 10

DEBUG           = no
CPP_DEBUG_FLAGS = -DCARPET_DEBUG
FPP_DEBUG_FLAGS = -DCARPET_DEBUG
C_DEBUG_FLAGS   = -fbounds-check -fstack-protector-all -ftrapv
CXX_DEBUG_FLAGS = -fbounds-check -fstack-protector-all -ftrapv
F77_DEBUG_FLAGS = -fcheck=bounds,do,mem,pointer,recursion -finit-character=65 -finit-integer=42424242 -finit-real=nan -fstack-protector-all -ftrapv -fwhole-file
F90_DEBUG_FLAGS = -fcheck=bounds,do,mem,pointer,recursion -finit-character=65 -finit-integer=42424242 -finit-real=nan -fstack-protector-all -ftrapv -fwhole-file

# Changing ANSI C semantics:
# -funsafe-loop-optimizations -ffast-math-errno
# Graphite optimisations are not implemented:
# -floop-interchange -floop-strip-mine -floop-block
# LTO support is not enabled:
# -flto
OPTIMISE           = yes
CPP_OPTIMISE_FLAGS = # -DCARPET_OPTIMISE -DNDEBUG
FPP_OPTIMISE_FLAGS = # -DCARPET_OPTIMISE -DNDEBUG
C_OPTIMISE_FLAGS   = -O3 -funsafe-loop-optimizations -fsee -ftree-loop-im -fivopts -fvect-cost-model -funroll-loops -funroll-all-loops -fvariable-expansion-in-unroller -fprefetch-loop-arrays -ffast-math -fassociative-math -freciprocal-math -fno-trapping-math -fexcess-precision=fast -ftree-vectorize
CXX_OPTIMISE_FLAGS = -O3 -funsafe-loop-optimizations -fsee -ftree-loop-im -fivopts -fvect-cost-model -funroll-loops -funroll-all-loops -fvariable-expansion-in-unroller -fprefetch-loop-arrays -ffast-math -fassociative-math -freciprocal-math -fno-trapping-math -fexcess-precision=fast -ftree-vectorize
F77_OPTIMISE_FLAGS = -O3 -funsafe-loop-optimizations -fsee -ftree-loop-im -fivopts -fvect-cost-model -funroll-loops -funroll-all-loops -fvariable-expansion-in-unroller -fprefetch-loop-arrays -ffast-math -fassociative-math -freciprocal-math -fno-trapping-math -fexcess-precision=fast -fno-protect-parens -ftree-vectorize
F90_OPTIMISE_FLAGS = -O3 -funsafe-loop-optimizations -fsee -ftree-loop-im -fivopts -fvect-cost-model -funroll-loops -funroll-all-loops -fvariable-expansion-in-unroller -fprefetch-loop-arrays -ffast-math -fassociative-math -freciprocal-math -fno-trapping-math -fexcess-precision=fast -fno-protect-parens -ftree-vectorize

PROFILE           = no
CPP_PROFILE_FLAGS =
FPP_PROFILE_FLAGS =
C_PROFILE_FLAGS   = -pg
CXX_PROFILE_FLAGS = -pg
F77_PROFILE_FLAGS = -pg
F90_PROFILE_FLAGS = -pg

OPENMP           = yes
CPP_OPENMP_FLAGS = -fopenmp
FPP_OPENMP_FLAGS = -fopenmp
C_OPENMP_FLAGS   = -fopenmp
CXX_OPENMP_FLAGS = -fopenmp
F77_OPENMP_FLAGS = -fopenmp
F90_OPENMP_FLAGS = -fopenmp

# -Wuninitialized is not supported without -O
WARN           = no
#CPP_WARN_FLAGS = -Wall
#FPP_WARN_FLAGS = -Wall
#C_WARN_FLAGS   = -Wall -Wshadow -Wpointer-arith -Wcast-qual -Wcast-align -Wstrict-prototypes -Wmissing-declarations -Wbad-function-cast -Wsign-compare
#CXX_WARN_FLAGS = -Wall -Wshadow -Wpointer-arith -Wcast-qual -Wcast-align -Woverloaded-virtual
#F77_WARN_FLAGS = -Wall -Wshadow -Wsurprising
#F90_WARN_FLAGS = -Wall -Wshadow -Wsurprising

and local cluster:

CPP = cpp
FPP = cpp
CC  = icc
CXX = icpc
F77 = ifort
F90 = ifort
FPPFLAGS= -traditional

CPPFLAGS = -fPIC
FPPFLAGS = -traditional
CFLAGS   = -g -std=gnu99 -fPIC
CXXFLAGS = -g -fPIC
F77FLAGS = -g -traceback -fPIC 
F90FLAGS = -g -traceback -fPIC

LIBDIRS = /util/software/Intel/INTEL_12.0/composerxe-2011.0.084/compiler/lib/intel64 /util/software/Intel/INTEL_12.0/composerxe-2011.0.084/compiler/lib/intel64

C_LINE_DIRECTIVE = yes
F_LINE_DIRECTIVE = yes

# -O2 and -O3 leads to very long (infinite?) compile times
#OPTIMISE           = yes
#CPP_OPTIMISE_FLAGS = # -DCARPET_OPTIMISE -DNDEBUG
#FPP_OPTIMISE_FLAGS = # -DCARPET_OPTIMISE -DNDEBUG
#C_OPTIMISE_FLAGS   = -O -funroll-loops -ftz
#CXX_OPTIMISE_FLAGS = -O -funroll-loops -ftz
#F77_OPTIMISE_FLAGS = -O -funroll-loops -ftz
#F90_OPTIMISE_FLAGS = -O -funroll-loops -ftz

#PROFILE           = no
#CPP_PROFILE_FLAGS =
#FPP_PROFILE_FLAGS =
#C_PROFILE_FLAGS   = -p
#CXX_PROFILE_FLAGS = -p
#F77_PROFILE_FLAGS = -p
#F90_PROFILE_FLAGS = -p

OPENMP           = yes
CPP_OPENMP_FLAGS = -openmp
FPP_OPENMP_FLAGS = -fopenmp
C_OPENMP_FLAGS   = -openmp
CXX_OPENMP_FLAGS = -openmp
F77_OPENMP_FLAGS = -openmp
F90_OPENMP_FLAGS = -openmp


#WARN           = yes
#CPP_WARN_FLAGS = -Wall
#FPP_WARN_FLAGS = -Wall
#C_WARN_FLAGS   = -Wall -wd810 -wd981 -wd1419
#CXX_WARN_FLAGS = -Wall -wd810 -wd981 -wd1419
#F77_WARN_FLAGS = -warn all
#F90_WARN_FLAGS = -warn all

thanks alot,

best wishes,

Vassili

On Mon, Oct 8, 2012 at 8:39 AM, Roland Haas <roland.haas@physics.gatech.edu> wrote:
Hello Vasilios,

> i don't know whats causing this, could the problem be caused by the
> different compilers on the two machines?
We run the Cactus testsuites on all supported machine before releases.
With very few exceptions for exotic machines/compilers all tests pass on
all machines with all compilers (see
http://einsteintoolkit.org/release-info/parse_testsuite_results.php)
using identical test data. So what I am trying to say is that while
there will be differences between different compilers (and compiler
options), they tend to be small (1e-12 relative deviation or so).
Exceptions are codes that discretely change behaviour based on data (ie.
shock capturing) and everything that involves 1/r terms and evaluations
close to zero. In particular Intel and gcc compiler will differ (unless
both are passed the -O0 option) since Intel defaults to --fast-math
which produces non ieee compliant floating point arithmetic, while
gfortran if standards comforming unless to otherwise.

My guess based on you saying "it does not work" (please provide more
information: which machines, how many MPI processes and OpenMP threads
each, ideally the full output of Cactus/Carpet is useful) would be to
check that you run with the same number of MPI processes and OpenMP
threads on both machines (Carpet outputs this information on startup).
If the number of threads is 1 in one case and larger than one in the
other then you have an OpenMP problem (somewhere).

Yours,
Roland

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