--disable-aligned-segments in GASNet library ?

• Previous message: Ed D'Azevedo: "example codes available in UPC?"

Dear developers,

We have installed OK the UPCC-2.6.0 compiler on a Beowulf cluster 
(some technical details at the end of this message) and, as a 
first step, we use the "mpi conduit".

Then, testing with the "upc-examples" subdirectory and set 
"export UPCC_FLAGS = -network mpi" in its Makefile and

gmake examples 2>&1 | tee gmake-examples.log
gmake runall 2>&1 | tee gmake-runall.log

the following WARNING issue is shown:

"WARNING: It appears your compute nodes are using a Linux security
feature which intentionally randomizes the virtual address space, 
but GASNet was configured to optimize for congruent address spaces. 
You probably need to re-configure with --disable-aligned-segments 
to avoid errors at job startup (especially for runs with large node 
count or shared segment size)"

We saw this warning before in a previous installation for other
package and we know how to re-configure and build the GASNet library 
with such flag.

But, how can we do the same task using the "configure" or the "make" 
of the UPCC compiler for the GASNet library included in the 
distribution ?

Can someone give some suggestion for perform this optimization, please?

Regards in advance,
Jorge D'Elia.
---
CIMEC, http://venus.ceride.gov.ar/cimec
INTEC, Guemes 3450, 3000-Santa Fe, ARGENTINA
tel: +54-342-451.15.94, int. 1018
fax: +54-342-455.09.44
Universidad Nacional del Litoral (UNL)
Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET)

----
PD:

1) Our Beowulf cluster is built with IA-32 P4 nodes and a Gigabit
ethernet
network. Software include MPICH2-1.0.6, ifort-9.0, gcc-3.4.6 and Linux
2.6.9-22.0.1.ELsmp (Scientific Linux).

2) The P4 nodes are Prescott ones of 3.0 GHz, motherboards Intel 3.0
GHz with Gigabit Lan on board, 2GB RAM and 400 MHz DDR.

3) The network is composed with two ethernet switchs of 1 Gbit/s,
ethernet 3Com SuperStack 3 Switch 3870 and 48 ports each.
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• application/x-compressed-tar attachment: reconfigure.tgz

• Previous message: Ed D'Azevedo: "example codes available in UPC?"