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[SALOME platform 0019911]: pb of memory allocation in SMESH

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make the amount of memory allocated at each step depend on total RAM size
This commit is contained in:
eap 2008-07-07 07:34:17 +00:00
parent 779689b9a7
commit 9ea74d4371
1 changed files with 9 additions and 4 deletions
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13
src/SMDS/SMDS_MemoryLimit.cxx
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@ -5,7 +5,7 @@
// Executable to find out a lower RAM limit (MB), i.e. at what size of freeRAM
// reported by sysinfo, no more memory can be allocated.
// This is not done inside a function of SALOME because allocated memory is not returned
// to the system
// to the system. (PAL16631)
#ifndef WIN32
#include <sys/sysinfo.h>
@ -15,7 +15,9 @@
#include <iostream>
#endif
int main (int argc, char ** argv) {
int main (int argc, char ** argv)
{
// To better understand what is going on here, consult bug [SALOME platform 0019911]
#ifndef WIN32
struct sysinfo si;
int err = sysinfo( &si );
@ -23,8 +25,11 @@ int main (int argc, char ** argv) {
return -1;
unsigned long freeRamKb = ( si.freeram * si.mem_unit ) / 1024;
const unsigned long stepKb = 8; // less nb leads to hung up on Mandriva2006 without swap
// (other platforms not tested w/o swap)
// totat RAM size in Gb, float is in order not to have 1 instead of 1.9
float totalramGb = float( si.totalram * si.mem_unit ) / 1024 / 1024 / 1024;
// nb Kbites to allocate at one step. Small nb leads to hung up
const int stepKb = int( 5 * totalramGb );
unsigned long nbSteps = freeRamKb / stepKb * 2;
try {