CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT

problem loading UDF library in parallel cluster

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   October 1, 2008, 16:12
Default problem loading UDF library in parallel cluster
  #1
Veera Gutti
Guest
 
Posts: n/a
I am trying to use udf's for FLUENT in parallel linux cluster.I am having trouble loading compiled UDF libraries. The UDF compilation and library loading is working good in serial mode (no problem) on the linux cluster.

In parallel computing, the compilation is going good (I hope). Here is the compilation log

or d in lnamd64/[23]*; do \

( \

cd $d; \

for f in ../../src/*.[ch] ../../src/makefile; do \

if [ ! -f `basename $f` ]; then \

echo "# linking to" $f "in" $d; \

ln -s $f .; \

fi; \

done; \

echo ""; \

echo "# building library in" $d; \

if [ "" = "1" ]; then \

echo "# using gcc64"; \

make ARCHC=gcc64 -k>makelog 2>&1; \

else \

if [ "" = "1" ]; then \

echo "# using gcc"; \

make ARCHC=gcc -k>makelog 2>&1; \

else \

make -k>makelog 2>&1; \

fi; \

fi;\

cat makelog; \

) \

done # linking to ../../src/thermophoresis_air_udf.c in lnamd64/3ddp_host # linking to ../../src/makefile in lnamd64/3ddp_host

# building library in lnamd64/3ddp_host make[1]: Entering directory `/home/veera/FLUENT_working/thermophoresis/lib-junk2/lnamd64/3ddp_host' # Generating udf_names.c because of makefile thermophoresis_air_udf.c make[2]: Entering directory `/home/veera/FLUENT_working/thermophoresis/lib-junk2/lnamd64/3ddp_host' make libudf.so "CFLAGS=-fpic -shared -ansi -Wall -O -DPTR_RESTRICT= " "LDFLAGS=-shared -lm" make[3]: Entering directory `/home/veera/FLUENT_working/thermophoresis/lib-junk2/lnamd64/3ddp_host' # Compiling udf_names.o because of udf_names.c cc -fpic -shared -ansi -Wall -O -DPTR_RESTRICT= -I/opt/Fluent.Inc/fluent12.0.3/`expr \`pwd\` : '.*/\(.*\)/[23].*'`/`basename \`pwd\`` -I/opt/Fluent.Inc/fluent12.0.3/src -I/opt/Fluent.Inc/fluent12.0.3/cortex/src -I/opt/Fluent.Inc/fluent12.0.3/client/src -I/opt/Fluent.Inc/fluent12.0.3/tgrid/src -I/opt/Fluent.Inc/fluent12.0.3/multiport/src -I/opt/Fluent.Inc/fluent12.0.3/multiport/mpi_wrapper/include -I. -c udf_names.c # Compiling thermophoresis_air_udf.o because of thermophoresis_air_udf.c cc -fpic -shared -ansi -Wall -O -DPTR_RESTRICT= -I/opt/Fluent.Inc/fluent12.0.3/`expr \`pwd\` : '.*/\(.*\)/[23].*'`/`basename \`pwd\`` -I/opt/Fluent.Inc/fluent12.0.3/src -I/opt/Fluent.Inc/fluent12.0.3/cortex/src -I/opt/Fluent.Inc/fluent12.0.3/client/src -I/opt/Fluent.Inc/fluent12.0.3/tgrid/src -I/opt/Fluent.Inc/fluent12.0.3/multiport/src -I/opt/Fluent.Inc/fluent12.0.3/multiport/mpi_wrapper/include -I. -c thermophoresis_air_udf.c # Linking libudf.so because of makefile udf_names.c udf_names.o thermophoresis_air_udf.o ld -shared -lm udf_names.o thermophoresis_air_udf.o -o libudf.so make[3]: Leaving directory `/home/veera/FLUENT_working/thermophoresis/lib-junk2/lnamd64/3ddp_host' make[2]: Leaving directory `/home/veera/FLUENT_working/thermophoresis/lib-junk2/lnamd64/3ddp_host' make[1]: Leaving directory `/home/veera/FLUENT_working/thermophoresis/lib-junk2/lnamd64/3ddp_host' # linking to ../../src/thermophoresis_air_udf.c in lnamd64/3ddp_node # linking to ../../src/makefile in lnamd64/3ddp_node

# building library in lnamd64/3ddp_node make[1]: Entering directory `/home/veera/FLUENT_working/thermophoresis/lib-junk2/lnamd64/3ddp_node' # Generating udf_names.c because of makefile thermophoresis_air_udf.c make[2]: Entering directory `/home/veera/FLUENT_working/thermophoresis/lib-junk2/lnamd64/3ddp_node' make libudf.so "CFLAGS=-fpic -shared -ansi -Wall -O -DPTR_RESTRICT= " "LDFLAGS=-shared -lm" make[3]: Entering directory `/home/veera/FLUENT_working/thermophoresis/lib-junk2/lnamd64/3ddp_node' # Compiling udf_names.o because of udf_names.c cc -fpic -shared -ansi -Wall -O -DPTR_RESTRICT= -I/opt/Fluent.Inc/fluent12.0.3/`expr \`pwd\` : '.*/\(.*\)/[23].*'`/`basename \`pwd\`` -I/opt/Fluent.Inc/fluent12.0.3/src -I/opt/Fluent.Inc/fluent12.0.3/cortex/src -I/opt/Fluent.Inc/fluent12.0.3/client/src -I/opt/Fluent.Inc/fluent12.0.3/tgrid/src -I/opt/Fluent.Inc/fluent12.0.3/multiport/src -I/opt/Fluent.Inc/fluent12.0.3/multiport/mpi_wrapper/include -I. -c udf_names.c # Compiling thermophoresis_air_udf.o because of thermophoresis_air_udf.c cc -fpic -shared -ansi -Wall -O -DPTR_RESTRICT= -I/opt/Fluent.Inc/fluent12.0.3/`expr \`pwd\` : '.*/\(.*\)/[23].*'`/`basename \`pwd\`` -I/opt/Fluent.Inc/fluent12.0.3/src -I/opt/Fluent.Inc/fluent12.0.3/cortex/src -I/opt/Fluent.Inc/fluent12.0.3/client/src -I/opt/Fluent.Inc/fluent12.0.3/tgrid/src -I/opt/Fluent.Inc/fluent12.0.3/multiport/src -I/opt/Fluent.Inc/fluent12.0.3/multiport/mpi_wrapper/include -I. -c thermophoresis_air_udf.c # Linking libudf.so because of makefile udf_names.c udf_names.o thermophoresis_air_udf.o ld -shared -lm udf_names.o thermophoresis_air_udf.o -o libudf.so make[3]: Leaving directory `/home/veera/FLUENT_working/thermophoresis/lib-junk2/lnamd64/3ddp_node' make[2]: Leaving directory `/home/veera/FLUENT_working/thermophoresis/lib-junk2/lnamd64/3ddp_node' make[1]: Leaving directory `/home/veera/FLUENT_working/thermophoresis/lib-junk2/lnamd64/3ddp_node'

But while loading the UDF library I have trouble and the program just keeps running and running with no end after the message as shown below.

Opening library "libudf"... Library "libudf/lnamd64/3ddp_host/libudf.so" opened connect to address 192.168.1.1 port 544: connection refused connect to address 192.168.1.1 port 544: connection refused trying normal rsh (/usr/bin/rsh) connect to address 192.168.1.1 port 544: connection refused connect to address 192.168.1.1 port 544: connection refused trying normal rsh (/usr/bin/rsh) connect to address 192.168.1.1 port 544: connection refused connect to address 192.168.1.1 port 544: connection refused trying normal rsh (/usr/bin/rsh) connect to address 192.168.1.1 port 544: connection refused connect to address 192.168.1.1 port 544: connection refused ....... ... .. . Primitive Error at Node 0: open_udf_library: No such file or directory connect to address 192.168.1.1 port 544: connection refused connect to address 192.168.1.1 port 544: connection refused trying normal rsh (/usr/bin/rsh) connect to address 192.168.1.1 port 544: connection refused connect to address 192.168.1.1 port 544: connection refused trying normal rsh (/usr/bin/rsh) connect to address 192.168.1.1 port 544: connection refused connect to address 192.168.1.1 port 544: connection refused trying normal rsh (/usr/bin/rsh) ... .. .. node01: Connection refused node01: Connection refused node01: Connection refused node01: Connection refused node02: Connection refused node02: Connection refused node02: Connection refused node02: Connection refused head.cluster: Connection refused

Thank you in advance for your help.
  Reply With Quote

Old   October 8, 2008, 12:07
Default Re: problem loading UDF library in parallel cluste
  #2
Veera Gutti
Guest
 
Posts: n/a
Hi all,

I solved the problem myself. Open the mesh file in parallel fluent, compile the library and exit fluent. Then export the library folder (make sure the path to the library folder is the same on the nodes as well while exporting) to all the compute nodes in the linux cluster. Then start fluent again... load the library.
  Reply With Quote

Old   March 5, 2010, 22:25
Default thermophoresis_air_udf.c
  #3
New Member
 
NH
Join Date: Jul 2009
Posts: 23
Rep Power: 16
NH_Aus is on a distinguished road
Send a message via Skype™ to NH_Aus
Hi there, Could you post your thermophoresis_air_udf.c code?

docnurulhasan@gmail.com
NH_Aus is offline   Reply With Quote

Old   April 7, 2010, 13:07
Default UDF interpreting in parallel
  #4
New Member
 
Xavi
Join Date: Apr 2009
Location: Amsterdam
Posts: 16
Rep Power: 16
xavi is on a distinguished road
Hi,
I have problems interpreting an UDF through a cluster, there is a problem when it tries to write for each node the UDF...any ideas what to do? I have shared folders but didn't work...
cheers
xavi is offline   Reply With Quote

Old   August 31, 2010, 14:49
Default
  #5
New Member
 
Vivek
Join Date: Aug 2010
Posts: 2
Rep Power: 0
svvivekv is on a distinguished road
Hi I am having the same problem in loading the UDF using the linux platform. Thing is my computer is a mulit proccesor unit. I am able to load the UDF when the serial node is on but when when I with the parrel settings these are the errors I obtain:

Primitive Error at Node 1: open_udf_library: No such file or directory

Primitive Error at Node 2: open_udf_library: No such file or directory

Primitive Error at Node 3: open_udf_library: No such file or directory

Please do help if you have a solution or suggestion.

Thanks
svvivekv is offline   Reply With Quote

Old   April 2, 2011, 06:20
Default udf node error fluent
  #6
Member
 
Join Date: Mar 2011
Posts: 50
Rep Power: 14
cdf_user is on a distinguished road
To Veera Gutti,

How do we export the library folder to all the nodes. Please elaborate on this?

Sharjeel.
cdf_user is offline   Reply With Quote

Old   July 1, 2011, 06:22
Default
  #7
New Member
 
Join Date: Nov 2009
Posts: 4
Rep Power: 16
ajConsu is on a distinguished road
I am having almost the same problems.

When I am working on graphic mode, as I open the .cas and .dat files and I build and load the UDF library at the same directory, it leads to no errors.

But when I save the .cas and .dat files and I try to launch Fluent from a journal file, it can't read the UDF library because it is searching the libudf.so file in the nodes directories, not in the .cas and .dat files directory.

Entering the full path when loading UDF library does not work.
Entering a line in the UDF explaining where to go when loading the UDF neither.
ajConsu is offline   Reply With Quote

Old   July 3, 2011, 10:15
Default error udf library ....path not found
  #8
Member
 
daalou
Join Date: Feb 2011
Posts: 31
Rep Power: 15
alilouu is on a distinguished road
I have almost the same problem, when I use my own laptop, i load the udf ordinary, but when i use a work station, i cn not load it, " error udf library..path to the libudf not found", and I didn't assimilate the answer of exporting the folder of libudf to the calculate nodes.
thanks
alilouu is offline   Reply With Quote

Old   July 26, 2016, 08:24
Default
  #9
New Member
 
Mo
Join Date: Mar 2015
Posts: 6
Rep Power: 11
mhaghdoost is on a distinguished road
same problem here. Anyone finds a workaround?
mhaghdoost is offline   Reply With Quote

Reply

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
Loading parallel udf Pablo FLUENT 7 March 6, 2011 11:25
loading udf in parallel sytem tahere FLUENT 5 December 13, 2008 02:17
problem loading UDF in parallel fluent Tim FLUENT 12 July 12, 2008 13:59
64 bit in parallel with 32 bit cluster Dr. Flow Squad FLUENT 2 December 5, 2007 07:34
Error when loading a shared library rid FLUENT 4 May 29, 2006 15:51


All times are GMT -4. The time now is 01:21.