(PR#8861) Memory allocation fails in R 2.2.1 and R 2.3.0 on SGI Irix, while plenty of memory available
On a solaris 9 box here, gcc 3.4.2 defaults to build 32-bit binaries for some unknown reason, but can be pursuaded to build 64-bit executables by passing the -m64 switch explicitly. (this is first hand experience, discovered while looking into a similiar anomaly with another piece of software). I think gcc on early version of Mac OS X (10.2?) has a similiar behavior also of defaulting to 32-bit unless told otherwise, but can be pursuaded. Maybe gcc on IRIS can be similiarly pursuaded too? gcc -v Reading specs from /usr/local/lib/gcc/sparc-sun-solaris2.9/3.4.2/specs Configured with: ../configure --with-as=/usr/ccs/bin/as --with-ld=/usr/ccs/bin/ld --disable-nls
Mirjam van Vroonhoven wrote:
Prof Brian Ripley wrote on Mon, May 15, 2006 at 04:09:38PM +0100:
You can tell if you have a 64bit build of R by looking at .Machine$sizeof.pointer in R, which should be 8.
And if this is a 32-bit build, it is working as expected given the limited address space.
It is a 32 bit build. My R 2.0.0 is a 64bit build.
If not, then you need to set whatever C and Fortran compilation flags give a 64bit system. It doesn't look to me as if R's configure script has any special handling for C compiler flags on SGI.
Well, the R-admin manual says (under IRIX)
@R{} 2.1.0 has been successfully built on IRIX64 6.5 using both
@command{gcc} and the native (MipsPro 7.4) compiler. However, neither
version has passed @command{make check} due to a problem with time
zones (see below). A 64-bit executable has not been successfully
built.
so we could not use special handling for a system we have not been told
how to build in 64-bit mode.
Here we don't know the OS, the compiler, the flags used .... and that
definitely is a bug.
The OS is irix 6.5.27, compiler = gcc, no special flags.
But that is no different from what I recall to have done when building
R 2.0.0 a long time ago.
I'll try to find out how to build a 64 bit executable, and see wether it
works. Probably that is easier using the native mipspro compiler.
Will report back to you guys when I find out a way to build a working
64bit R 2.3.0 on SGI/irix64
Thanks for the time,
Mirjam