Problems with multithreading
Hello everyone,
I have to integrate (link) my routines to commercial software which was compiled with Sun One Studio 9. I have a reference version compiled several months ago working just fine. After recent updates on our Sun Fire 15K StarCat (Solaris 9) managed by our administrators I tried to recompile my version and multithreading stopped working ?it runs with one thread whatever I do. During compilation I used the same script, the same functions, compiler etc. When I checked the library dependency through ldd command I found out that my newly created build depends on /usr/lib/64/libpthread.so.1 and lib/sparcv9/libmtsk.so.1 while my older, perfectly working, does not (both builds depend on libthread.so.1). That was the only discrepancy. Our administrators were not able to track the source of the problem. Could anyone explain me what might have happened and how I can get this fixed. I will very appreciate any feedback!
Kind regards,
Artem
[979 byte] By [
artkul] at [2007-11-26 11:27:42]
# 2
Thank you, Stephen,
These are the options supplied to the linker (in two pieces). As you might see 杕t option is enabled and 杔threads only is set. I used these options already to create a successfully working program run nicely in parallel.
flink3d="CC -V -v -mt -native -dalign -ftrap=%none \
-libmil -fsimple=0 -xO3 -xtarget=ultra -xarch=v9b \
-xopenmp -xcheck=stkovf \
-L/usr/lib/lwp/sparcv9 -R/usr/lib/lwp/sparcv9 \
-L$Cpath/$SYSDIR \
-L$OPENWINHOME/lib/sparcv9 -L/usr/lib/sparcv9 \
-L/usr/ucblib/sparcv9 -L/usr/dt/lib/sparcv9 \
-L$path/$SYSDIR -L/opt/SUNWspro/lib/v9 \
-L/opt/SUNWspro/lib/v9b"
lopns3d=" -lGL -lGLU -lXm -lXt -lX11 -lnsl -lsocket \
-L/opt/SUNWspro/lib/v9b -xlic_lib=sunperf \
-lintl -lrt -ldl -lmtsk -lsunmath -lfsu -lfai2 -lfui -lthread"
I wonder why the newly created build depends on pthreads although I do not explicitly state this and my old working build created with the very same settings is pthreads independent.
Additional info: the program I link to is provided with a set of precompiled libraries written in Fortran, C and Cpp. Pthreads are not used on Sun US-III according to developers but only on HP servers.
Between creating working and non-working build we installed Sun One Studio 11 and got through unsuccessful attempt to install Solaris 10 (we rolled back to Solaris 9).
printenv PATH:
/usr/local/app/forte9/SUNWspro/bin:/usr/ccs/bin:/usr/local/teTeX/bin/sparc-sun- solaris2.9:/usr/local/xmgr/bin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin :/usr/dt/bin:/usr/ucb:/opt/SUNWhpc/HPC6.0/bin:/usr/openwin/bin:/usr/local/app/tm a/bin:/usr/local/app/Acrobat4/bin:/opt/CTEact/bin:/usr/local/staroffice7:/opt/SU NWut/bin:/opt/SUNWut/sbin:/usr/sfw/bin:/usr/sfw/sbin:/usr/dapp/aplac/bin:/usr/lo cal/app/forte9/SUNWspro/bin:/stripe1/artkul/ansys10/v100/ansys/bin/usIII:/stripe 1/artkul/ansys10/v100/ansys/bin/
printenv LD_LIBRARY_PATH
/usr/local/app/forte9/SUNWspro/lib:/usr/ccs/lib:/usr/j2se/lib:/usr/lib:/lib:/us r/local/ssl/lib:/usr/dt/lib:/opt/SUNWhpc/HPC6.0/lib:/usr/openwin/lib:/usr/local/ app/tma/lib:/usr/sfw/lib:/usr/dapp/aplac/lib:/usr/local/lib/sparcv9:/stripe1/art kul/ansys10/v100/ansys/syslib/usIII/:/stripe1/artkul/ansys10/v100/ansys/lib/usII I/:/stripe1/artkul/ansys10/v100/commonfiles/Tcl/lib/usIII
output from ddl:
libansys.so=> /stripe1/artkul/ansys10/v100/ansys/lib/usIII//libansys.so
libansysb.so=> /stripe1/artkul/ansys10/v100/ansys/lib/usIII//libansysb.so
libansysx.so=> /stripe1/artkul/ansys10/v100/ansys/lib/usIII//libansysx.so
libmnf.so => /stripe1/artkul/ansys10/v100/ansys/lib/usIII//libmnf.so
libcadoe_core.so => /stripe1/artkul/ansys10/v100/ansys/lib/usIII//libcadoe_core.so
libcif.so => /stripe1/artkul/ansys10/v100/ansys/lib/usIII//libcif.so
libz.so=> /stripe1/artkul/ansys10/v100/commonfiles/Tcl/lib/usIII/libz.so
libpng.so => /stripe1/artkul/ansys10/v100/commonfiles/Tcl/lib/usIII/libpng.so
libtiff.so=> /stripe1/artkul/ansys10/v100/commonfiles/Tcl/lib/usIII/libtiff.so
libjpeg.so=> /stripe1/artkul/ansys10/v100/commonfiles/Tcl/lib/usIII/libjpeg.so
libGL.so.1=> /lib/sparcv9/libGL.so.1
libGLU.so.1=> /lib/sparcv9/libGLU.so.1
libXm.so.4=> /lib/sparcv9/libXm.so.4
libXt.so.4=> /lib/sparcv9/libXt.so.4
libX11.so.4=> /lib/sparcv9/libX11.so.4
libnsl.so.1=> /lib/sparcv9/libnsl.so.1
libsocket.so.1=> /lib/sparcv9/libsocket.so.1
libsunperf.so.5=> /stripe1/artkul/ansys10/v100/ansys/syslib/usIII//libsunperf.so.5
libfui.so.1=> /stripe1/artkul/ansys10/v100/ansys/syslib/usIII//libfui.so.1
libfai.so.2=> /stripe1/artkul/ansys10/v100/ansys/syslib/usIII//libfai.so.2
libfsu.so.1=> /stripe1/artkul/ansys10/v100/ansys/syslib/usIII//libfsu.so.1
libmtsk.so.1=> /lib/sparcv9/libmtsk.so.1 (*)
libsunmath.so.1=> /stripe1/artkul/ansys10/v100/ansys/syslib/usIII//libsunmath.so.1
libintl.so.1=> /lib/sparcv9/libintl.so.1
librt.so.1=> /lib/sparcv9/librt.so.1
libdl.so.1=> /lib/sparcv9/libdl.so.1
libfai2.so.2=> /stripe1/artkul/ansys10/v100/ansys/syslib/usIII//libfai2.so.2
libthread.so.1=> /usr/lib/lwp/sparcv9/libthread.so.1
libCstd.so.1=> /lib/sparcv9/libCstd.so.1
libCrun.so.1=> /lib/sparcv9/libCrun.so.1
libm.so.1 => /lib/sparcv9/libm.so.1
libc.so.1 => /lib/sparcv9/libc.so.1
libw.so.1 => /lib/sparcv9/libw.so.1
libf77compat.so.1 => /stripe1/artkul/ansys10/v100/ansys/syslib/usIII//libf77compat.so.1
libXmu.so.4=> /usr/openwin/lib/sparcv9/libXmu.so.4
libXext.so.0=> /usr/openwin/lib/sparcv9/libXext.so.0
libdga.so.1=> /usr/openwin/lib/sparcv9/libdga.so.1
libSM.so.6=> /usr/openwin/lib/sparcv9/libSM.so.6
libICE.so.6=> /usr/openwin/lib/sparcv9/libICE.so.6
libmp.so.2=> /usr/lib/64/libmp.so.2
libpthread.so.1=> /usr/lib/64/libpthread.so.1 (*)
libaio.so.1=> /usr/lib/64/libaio.so.1
libmd5.so.1=> /usr/lib/64/libmd5.so.1
/usr/platform/SUNW,Sun-Fire-15000/lib/sparcv9/libc_psr.so.1
/usr/platform/SUNW,Sun-Fire-15000/lib/sparcv9/libmd5_psr.so.1
(*) - does not present in the old working version
Thank you again!
Kind regards,
Artem
