CFD Online Logo CFD Online URL
Home > Forums > General Forums > Hardware

why Starccm+ ran out of memory on Centos7

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Search this Thread Display Modes
Old   September 8, 2022, 04:47
Wink why Starccm+ ran out of memory on Centos7
New Member
warner chang
Join Date: Aug 2020
Posts: 21
Rep Power: 4
warnerchang is on a distinguished road
When I ran Starccm+ simulation on Centos7. Memory can easily explode, however, physical memory is about 128G. The log file is as follow:
# There is insufficient memory for the Java Runtime Environment to continue.
# Native memory allocation (mmap) failed to map 12288 bytes for committing reserved memory.
# Possible reasons:
#   The system is out of physical RAM or swap space
#   The process is running with CompressedOops enabled, and the Java Heap may be blocking the growth of the native heap
# Possible solutions:
#   Reduce memory load on the system
#   Increase physical memory or swap space
#   Check if swap backing store is full
#   Decrease Java heap size (-Xmx/-Xms)
#   Decrease number of Java threads
#   Decrease Java thread stack sizes (-Xss)
#   Set larger code cache with -XX:ReservedCodeCacheSize=
#   JVM is running with Unscaled Compressed Oops mode in which the Java heap is
#     placed in the first 4GB address space. The Java Heap base address is the
#     maximum limit for the native heap growth. Please use -XX:HeapBaseMinAddress
#     to set the Java Heap base and to place the Java Heap above 4GB virtual address.
# This output file may be truncated or incomplete.
#  Out of Memory Error (os_linux.cpp:2749), pid=4629, tid=0x00007f92f72fe700
# JRE version: Java(TM) SE Runtime Environment (8.0_202-b08) (build 1.8.0_202-b08)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.202-b08 mixed mode linux-amd64 compressed oops)
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again

---------------  T H R E A D  ---------------

Current thread (0x00007f9248001000):  JavaThread "Logging Flush" daemon [_thread_new, id=46237, stack(0x00007f92f71fe000,0x00007f92f72ff000)]

Stack: [0x00007f92f71fe000,0x00007f92f72ff000],  sp=0x00007f92f72fdad0,  free space=1022k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V  []  VMError::report_and_die()+0x2e5
V  []  report_vm_out_of_memory(char const*, int, unsigned long, VMErrorType, char const*)+0x67
V  []  os::pd_commit_memory(char*, unsigned long, bool)+0xf6
V  []  os::commit_memory(char*, unsigned long, bool)+0x1f
V  []  os::pd_create_stack_guard_pages(char*, unsigned long)+0x48
V  []  JavaThread::run()+0x1ee
V  []  java_start(Thread*)+0x102
C  []
I am new to this OS, anyone can offer some help?
warnerchang is offline   Reply With Quote

Old   September 8, 2022, 17:54
Super Moderator
flotus1's Avatar
Join Date: Jun 2012
Location: Germany
Posts: 3,165
Rep Power: 43
flotus1 has a spectacular aura aboutflotus1 has a spectacular aura about
I guess the reason you asked the question this way is that the simulation ran fine on a machine with a different operating system, and the same amount or RAM?

Don't know if this is a specific issue for CentOS or any other distro, but CCM+ currently copies an instance of the CAD models to every single core it is run on.
If there are a lot of CAD models, or they are fairly large, this can cause problems when running on many cores in parallel.
The only known workaround so far is deleting all CAD models.
Maybe this is relevant to you, otherwise feel free to fill us in on any other information that might be relevant here.

Last edited by flotus1; September 11, 2022 at 09:04.
flotus1 is offline   Reply With Quote

Old   September 10, 2022, 01:13
New Member
warner chang
Join Date: Aug 2020
Posts: 21
Rep Power: 4
warnerchang is on a distinguished road
Thank you for your reply!

I ran this simulation on ubuntu is fine, however, running it on Centos causes memory explosion! The memory usage is increasing gradually.
warnerchang is offline   Reply With Quote



Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
OpenFOAM benchmarks on various hardware eric Hardware 609 November 21, 2022 12:42
Used Memory Accumulates During Course of Simulation Until interFoam gets Killed Ship Designer OpenFOAM Running, Solving & CFD 5 July 21, 2022 20:59
General recommendations for CFD hardware [WIP] flotus1 Hardware 15 March 21, 2022 13:11
Lenovo C30 memory configuration and discussions with Lenovo matthewe Hardware 3 October 17, 2013 11:23

All times are GMT -4. The time now is 02:32.