[Llvm-bgq-discuss] address sanitizer on mira

[Hal Finkel]

----- Original Message -----
> From: "Cameron Smith" <smithc11 at rpi.edu>
> To: llvm-bgq-discuss at lists.alcf.anl.gov
> Sent: Thursday, February 27, 2014 2:17:10 PM
> Subject: [Llvm-bgq-discuss] address sanitizer on mira
> 
> On Mira I load up the clang wrapper module:
> $ soft add +mpiwrapper-bgclang.legacy
> 
> then build C hello world with address sanitizer:
> $ cat hello.c
> #include<stdio.h>
> int main() {printf("hello\n"); return 0;}
> $ mpicc hello.c -fsanitize=address -o hello
> 
> the following is output:
> > /home/projects/llvm/r201012-20140207/bin/clang: /lib64/libz.so.1:
> > no version information available (required by
> > /gpfs/mira-home/projects/llvm/r201012-20140207/bin/../lib/libLLVM-3.5svn.so)
> > /gpfs/mira-home/projects/llvm/r201012-20140207/bin/clang:
> > /lib64/libz.so.1: no version information available (required by
> > /gpfs/mira-home/projects/llvm/r201012-20140207/bin/../lib/libLLVM-3.5svn.so)
> > /home/projects/llvm/r201012-20140207/binutils/bin/as:
> > /lib64/libz.so.1: no version information available (required by
> > /home/projects/llvm/r201012-20140207/binutils/bin/as)
> > /home/projects/llvm/r201012-20140207/binutils/bin/ld:
> > /lib64/libz.so.1: no version information available (required by
> > /home/projects/llvm/r201012-20140207/binutils/bin/ld)
> 
> Can I safely ignore the libz version warnings?

Yes, you can ignore these. They occur because I complied bgclang on vesta, which has a newer version of the operating system (and thus libz) on its login node.

> 
> Also the page here
> https://www.alcf.anl.gov/user-guides/bgclang-compiler#memory-bounds-checking-%28address-sanitizer%29
> notes that address-sanitizer may be unstable with pre-V1R2M1 drivers.
> The default driver is V1R2M0.  If I load the V1R2M1 driver module via
> 'soft add +bgqdriver-V1R1M1' should I expect the build of clang
> pointed
> at by '+mpiwrapper-bgclang.legacy' to work correctly?

I'm not sure you can do that. I think that only the default driver works on mira. Can you try on vesta first?

 -Hal

> 
> Thank-you,
> Cameron
> 
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> 

-- 
Hal Finkel
Assistant Computational Scientist
Leadership Computing Facility
Argonne National Laboratory