Synplicity's synplify behaves very weird.

[Marc Kelly]

Hi,

I wonder if anyone else has experienced the following weird thing with
synplify_pro..

This is under linux on a dual core AMD machine (32 bit) with the new QT
based synplify's (9.x versions upto and including the latest beta test
version.)

It will run the first time after booting my machine, but if you quit or
it crashes, then it will not run a second time until you reboot. Instead
it sits at the "initializing license" stage forever, but never seems to
talk to the license server.. HOWEVER the command line version will work
normally, making me think its GUI related somehow..

Currently I am running it under Mandriva 2008, which i know is
"unsupported" hence asking here before going to Synplicity. I am trying
to get hold of a RedHat installed machine at work, or as we mainly use
it a Scientific Linux 4/5 machine. Tests on another Mandriva 2008
machines with a single core cpu didn't have any problems.

Anyone else ever come across this before I delve into it deeper and
consider sort out properly testing it under RH before reporting it?

Cheers..

--
/\/\arc

 

[Kim Enkovaara]

Marc Kelly wrote:

This is under linux on a dual core AMD machine (32 bit) with the new QT
based synplify's (9.x versions upto and including the latest beta test
version.)

It will run the first time after booting my machine, but if you quit or
it crashes, then it will not run a second time until you reboot. Instead
it sits at the "initializing license" stage forever, but never seems to
talk to the license server.. HOWEVER the command line version will work
normally, making me think its GUI related somehow..

I have seen that also with RH WS3. At least few times it worked when run
with strace -f -o /dev/null synplify_pro. It's hard to trace why it
fails, when with tracing it works

This sounds like some thread synchronization problem to me.

--Kim

 

[Marc Kelly]

Kim Enkovaara wrote:

It will run the first time after booting my machine, but if you quit or
it crashes, then it will not run a second time until you reboot. Instead
it sits at the "initializing license" stage forever, but never seems to
talk to the license server.. HOWEVER the command line version will work
normally, making me think its GUI related somehow..

I have seen that also with RH WS3. At least few times it worked when run
with strace -f -o /dev/null synplify_pro. It's hard to trace why it
fails, when with tracing it works

I have actually seen it work with strace too, and have run it in that
mode, but it goes very very slowly with all the debugging output. It
seem to hang at some semaphore/mutex point in strace.

I am guessing that a thread finish too quick and the main thread hangs
waiting.. sadly. In a Dual core, even worse, since the tread is probably
already in the cache of the second CPU when you run it and so runs very
quickly indeed.

If i get it hanging on a newer RH system I shall open a support case then..

Cheers for confirming I am not going crazy with it..