PyroNoise on Mac OS X?

[mbakker]

Has anyone tried using the PyroNoise software on a Mac?

According to the instructions, it is intended for Linux computers with MPI. OpenMPI comes bundled with Mac OS X, so I thought it might work... but I get this error when I give the 'make' command to generate the executables:

mpicc -O3 -m64 -fexceptions -c FDist.c linking...
mpicc -o FDist FDist.o -lm ld warning: in FDist.o, file is not of
required architecture
Undefined symbols:
"_main", referenced from:
start in crt1.10.5.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
make: *** [FDist] Error 1
mbakker$ /Applications/PyroNoise2/FDist >

Does anyone have any insights to share?
Thanks!

[jsquyres]

mpicc -O3 -m64 -fexceptions -c FDist.c
linking...
mpicc -o FDist FDist.o -lm
ld warning: in FDist.o, file is not of required architecture

I am not familiar with PyroNoise, but the error you are getting looks like FDist.c was compiled incorrectly (i.e., this is not an MPI issue). You only show part of the build logs above, but it looks like you compiler FDist.c with -m64 (meaning "compile in 64 bit mode") but then didn't try to link the final FDist executable with -m64 (i.e., it may have tried to default to 32 bit, thereby generating the architecture error).

You should probably check the build/install instructions for PyroNoise; hopefully they'll describe compiler and linker flags and how to set them...?

[mbakker]

This is what ended up working:

Change the first two lines of the makefile for the MPI executables (FDist, PCluster) to:

CC = `mpicc -showme`
CFLAGS = -O3 -m32 -fexceptions

And this works on a MacBook Pro with Mac OS X 10.5.8

[MoSpeed]

Has anyone tried running PyroNoise on OS X 10.6? Specifically, what should the flags be set to in the following provided makefile:

CC = mpicc -showme
CFLAGS = -O3 -m64 -fexceptions
EFLAGS =
EFILE = FDist
LIBS = -lm
OBJS = FDist.o

$(EFILE) : $(OBJS)
@echo "linking..."
$(CC) $(EFLAGS) -o $(EFILE) $(OBJS) $(LIBS)

$(OBJS) : FDist.h
$(CC) $(CFLAGS) -c $*.c

[AEscobar]

MoSpeed

Specifically, what should the flags be set to in the following provided makefile

I am also very much interested to know the answer to your question.