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-   -   Fluent startup problem (http://www.cfd-online.com/Forums/fluent/45178-fluent-startup-problem.html)

CFDnewbie June 27, 2007 10:52

Fluent startup problem
 
I have used fluent on an AMD 64 bits machine with 4GB of ram, after a week or two I have the next problem:

Loading "/Fluent.Inc/flunet6.3.26/lib/flprim.dmp.1119-64" Done. /Fluent.Inc/flunet6.3.26/bin/fluent: line 4829: 3675 Segmentation fault $NO_RUN $EXE_CMD $CX_FLAGS The fluent process could not be started. version>

Any help would be apreciated. Thanks.


vof_grid July 5, 2007 08:27

Re: Fluent startup problem
 
Hello CFDnewbie,

I have the same problem with AMD 64 on a fc6 machine. Have you resolved the problem.

Please post me your advise.

Thanks,

vof_grid.

Vignon July 12, 2007 04:19

Re: Fluent startup problem
 
I Have the same problem (FC6), but with a Intel Dual-Core 2 Duo Processor. I'm not a specialist with Linux, and The technical staff of Fluent France said to me that FC6 can or can't work corectly, with no responsability of Fluent ! First, they explain me to use Fluent 6.3 (I used Fluent 6.2), and it was successful at a first level, because the first shell script was incompatible with the Bash3.1 used in FC6. After that, Fluent begin and stopped at the same level as you ! They say than they can help me more if I use a "recognized" system config. If a solve the problem, in a comprehensive manner (I'm not alone), I'll said how to solve this problem. Jean-Marc Vignon

nirmalrishi June 12, 2009 13:46

Same error, please help
 
Hi,

I am using openSUSE 11.0 and fluent 6.3 version,
even i tried to update the current nvidia driver. but the error below occurs, please help me: The error is:

/bin/fluent: line 4829: 4292 Segmentation fault $NO_RUN $EXE_CMD $CX_FLAGS
The fluent process could not be started.
version>



Please help me.

freakband-kostas July 31, 2009 08:19

Hi Guys!

I am just copying and pasting some information usefull to your problem:

$NO_RUN $EXE_CMD $CX_FLAGS Error


Problem Description: When launching FLUENT you receive the following error: Segmentation fault $NO_RUN $EXE_CMD $CX_FLAGS

Resolution 1 : This error is usually a DNS or hosts file issue. Check your /etc/hosts file and verify that your IP Address is correctly mapped to your hostname. Verify that the host name in the /etc/hosts file is the exact hostname in the license.dat file. Also, contact your Systems Administrator and check for DNS issues.
You can try the following:
  1. In a Terminal window type: hostname (use the returned hostname in the next command)
  2. Type: ping hostname
It should return something as seen in the following example below:
ping hostname.company.com (IP_ADDRESS)
Verify that the IP_ADDRESS that was returned is the correct IP_ADDRESS for your hostname
If it returns the error: "unknown host hostname " open up a Terminal Windows and CD to the /etc directory. Open up the hosts file. The hosts file should contain at least the following:
127.0.0.1 localhost
IP_ADDRESS hostname.company.com hostname
(Where IP_ADDRESS hostname.company.com hostname is the IP ADDRESS on the local machine name and then add the Fully Qualified Domain Name (FQDN))
  1. Make the desired updates and save the file.
  2. Open up a new Terminal Window and try launching FLUENT again
Verifying the IP Address

You can verify the IP Address by typing:
/sbin/ifconfig -a
and
nslookup hostname.domain.com
Once verified check compare the return value with what is in the /etc/hosts file.


Resolution 2 : Comment out or delete all IPV6 information in the /etc/host file. For example, if you have the following in the /etc/host file put a pound symbol in front of each IBV6 entry and restart the network services.
# special IPv6 addresses
127.0.0.2 localhost
:1 localhost ipv6-localhost ipv6-loopback
fe00::0 ipv6-localnet
ff00::0 ipv6-mcastprefix
ff02::1 ipv6-allnodes
ff02::2 ipv6-allrouters
ff02::3 ipv6-allhosts


Hope this will clarify the situation. I have tried the first resolution in OpenSUSE 11.1 with Intel Dual-Core 2 Duo Processor and it worked perfectly :).

mechrod September 8, 2009 13:38

Resolution 1!!!
 
Quote:

Originally Posted by freakband-kostas (Post 224850)
Hi Guys!

I am just copying and pasting some information usefull to your problem:

$NO_RUN $EXE_CMD $CX_FLAGS Error


Problem Description: When launching FLUENT you receive the following error: Segmentation fault $NO_RUN $EXE_CMD $CX_FLAGS

Resolution 1 : This error is usually a DNS or hosts file issue. Check your /etc/hosts file and verify that your IP Address is correctly mapped to your hostname. Verify that the host name in the /etc/hosts file is the exact hostname in the license.dat file. Also, contact your Systems Administrator and check for DNS issues.
You can try the following:
  1. In a Terminal window type: hostname (use the returned hostname in the next command)
  2. Type: ping hostname
It should return something as seen in the following example below:
ping hostname.company.com (IP_ADDRESS)
Verify that the IP_ADDRESS that was returned is the correct IP_ADDRESS for your hostname
If it returns the error: "unknown host hostname " open up a Terminal Windows and CD to the /etc directory. Open up the hosts file. The hosts file should contain at least the following:
127.0.0.1 localhost
IP_ADDRESS hostname.company.com hostname
(Where IP_ADDRESS hostname.company.com hostname is the IP ADDRESS on the local machine name and then add the Fully Qualified Domain Name (FQDN))
  1. Make the desired updates and save the file.
  2. Open up a new Terminal Window and try launching FLUENT again
Verifying the IP Address

You can verify the IP Address by typing:
/sbin/ifconfig -a
and
nslookup hostname.domain.com
Once verified check compare the return value with what is in the /etc/hosts file.


Resolution 2 : Comment out or delete all IPV6 information in the /etc/host file. For example, if you have the following in the /etc/host file put a pound symbol in front of each IBV6 entry and restart the network services.
# special IPv6 addresses
127.0.0.2 localhost
:1 localhost ipv6-localhost ipv6-loopback
fe00::0 ipv6-localnet
ff00::0 ipv6-mcastprefix
ff02::1 ipv6-allnodes
ff02::2 ipv6-allrouters
ff02::3 ipv6-allhosts


Hope this will clarify the situation. I have tried the first resolution in OpenSUSE 11.1 with Intel Dual-Core 2 Duo Processor and it worked perfectly :).

Hi!

The resolution 1 is perfect!!!:D
Works in my Fedora 11!!!:)

Thank you freakband-kostas!!!!

gravis October 12, 2010 04:04

CentOS 5.5
 
Hi,

I got the same problem when updating from CentOS 4.7 to CentOS 5.5. Resolution #1 worked fine for me.

Thanks!

cdf_user March 20, 2012 23:05

I am getting the same error that you discussed. I tried both resolutions but it did not work. From the following information please check what I am doing wrong

sharjeel@linux-0jlt:~/Desktop> hostname
linux-0jlt.site

sharjeel@linux-0jlt:~/Desktop> nslookup localhost
Server: 75.75.75.75
Address: 75.75.75.75#53

Non-authoritative answer:
Name: localhost
Address: 127.0.0.1

sharjeel@linux-0jlt:~/Desktop> nslookup hostname
Server: 75.75.75.75
Address: 75.75.75.75#53

** server can't find hostname: NXDOMAIN


Here is what my hosts file looks like:

#
# hosts This file describes a number of hostname$
# mappings for the TCP/IP subsystem. It i$
# used at boot time, when no name servers $
# On small systems, this file can be used $
# "named" name server.
# Syntax:
#
# IP-Address Full-Qualified-Hostname Short-Hostname
#

127.0.0.1 localhost

# special IPv6 addresses
#::1 localhost ipv6-localhost
ipv6-loopback

#fe00::0 ipv6-localnet

#ff00::0 ipv6-mcastprefix
#ff02::1 ipv6-allnodes
#ff02::2 ipv6-allrouters
#ff02::3 ipv6-allhosts

Also by using /sbin/ifconfig I get this:

eth0 Link encap:Ethernet HWaddr 84:8F:69:B2:CA:98
inet addr:192.168.(OMITTED FOR SECURITY) Bcast:192.168.(OMITTED FOR SECURITY) Mask:255.255.255.0
inet6 addr: fe80::868f:69ff:feb2:ca98/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2427 errors:0 dropped:0 overruns:0 frame:0
TX packets:1479 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2606535 (2.4 Mb) TX bytes:199520 (194.8 Kb)
Interrupt:17 Base address:0xa000

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:76 errors:0 dropped:0 overruns:0 frame:0
TX packets:76 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:6023 (5.8 Kb) TX bytes:6023 (5.8 Kb)

wlan0 Link encap:Ethernet HWaddr 24:77:03:2E:65:14
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)



I think I have provided all the information that is needed. Please let me know if you find something wrong

THANKSSSSSSSSSSS!!!!!!!!!!!!!!!!


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