Problem generating events

Hi,

Looks like you face a bug of gcc.
Sorry but I can not really comment on that.
You can try to update your version of gcc to see if they have fix that bug since 4.8.

The fact that it work for simplest process does not really means anything since the bug can be related to code optimisation/memory handling/...
If you want to know more, you can read, file:///usr/share/doc/gcc-4.8/README.Bug
And follow the instructions written in that file.

Cheers,

Olivier

> On 22 May 2017, at 11:46, nilanjana <email address hidden> wrote:
>
> New question #633548 on MadGraph5_aMC@NLO:
> https://answers.launchpad.net/mg5amcnlo/+question/633548
>
> DearTeam,
>
> I am generating a process which involves cascade decays of quintuplet particles involving w prime particle.I have implemented my model via feynrules.
>
> I am doing generate p p > tp3+ tp3-,(tp3+ > e+ ve tp2+, (tp2+ > e+ ve tp1+, (tp1+ > e+ ve tp+, tp+ > e+ ve vtp~) )),(tp3- > tp2- u~ d, (tp2- > tp1- u~ d, (tp1- > tp- u~ d, tp- > vtp u~ d)))
>
> If I run Pythia either my system shuts down or I am getting an error :
>
> Error detected in "generate_events run_01"
> write debug file /home/theory/MG5_aMC_v2_4_3/try/run_01_tag_1_debug.log
> If you need help with this issue please contact us on https://answers.launchpad.net/mg5amcnlo
> MadGraph5Error : A compilation Error occurs when trying to compile /home/theory/MG5_aMC_v2_4_3/try/SubProcesses/P1_uux_tp3ptp3m_tp3p_epvetp2p_tp2p_epvetp1p_tp1p_epvetpp_tpp_epvevtpx_tp3m_tp2muxd_tp2m_tp1muxd_tp1m_tpmuxd_tpm_vtpuxd.
> The compilation fails with the following output message:
> gfortran -O -w -fbounds-check -fPIC -ffixed-line-length-132 -w -c driver.f -I../../Source/
> gfortran -O -w -fbounds-check -fPIC -ffixed-line-length-132 -w -c myamp.f -I../../Source/
> gfortran -O -w -fbounds-check -fPIC -ffixed-line-length-132 -w -c genps.f -I../../Source/
> gfortran -O -w -fbounds-check -fPIC -ffixed-line-length-132 -w -c unwgt.f -I../../Source/
> gfortran -O -w -fbounds-check -fPIC -ffixed-line-length-132 -w -c setcuts.f -I../../Source/
> gfortran -O -w -fbounds-check -fPIC -ffixed-line-length-132 -w -c get_color.f -I../../Source/
> gfortran -O -w -fbounds-check -fPIC -ffixed-line-length-132 -w -c cuts.f -I../../Source/
> gfortran -O -w -fbounds-check -fPIC -ffixed-line-length-132 -w -c cluster.f -I../../Source/
> gfortran -O -w -fbounds-check -fPIC -ffixed-line-length-132 -w -c reweight.f -I../../Source/
> gfortran -O -w -fbounds-check -fPIC -ffixed-line-length-132 -w -c initcluster.f -I../../Source/
> gfortran -O -w -fbounds-check -fPIC -ffixed-line-length-132 -w -c addmothers.f -I../../Source/
> gfortran -O -w -fbounds-check -fPIC -ffixed-line-length-132 -w -c setscales.f -I../../Source/
> gfortran -O -w -fbounds-check -fPIC -ffixed-line-length-132 -w -c auto_dsig1.f -I../../Source/
> gfortran -O -w -fbounds-check -fPIC -ffixed-line-length-132 -w -c auto_dsig.f -I../../Source/
> gfortran -O -w -fbounds-check -fPIC -ffixed-line-length-132 -w -c matrix1.f -I../../Source/
> gfortran: internal compiler error: Killed (program f951)
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <file:///usr/share/doc/gcc-4.8/README.Bugs> for instructions.
> make: *** [matrix1.o] Error 4
>
> Please try to fix this compilations issue and retry.
> Help might be found at https://answers.launchpad.net/mg5amcnlo.
> If you think that this is a bug, you can report this at https://bugs.launchpad.net/mg5amcnlo
> quit
>
>
>
> If I do a part of it,
>
> generate p p > tp1+ tp1-, (tp1+ > e+ ve tp+, tp+ > e+ ve vtp~), (tp1- > tp- u~ d, tp- > vtp u~ d)
>
> I am successfully generating events.
>
> Can you please advice me the reason?
>
> Thanks,
> Nilanjana Kumar
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.

Hi,

Many thanks for your reply. Where can I get the file?

Thanks,
Nilanjana

Hi,

You should have that file in your filesystem (I guess).
If you do not, then you might have a copy on some gcc website.

Cheers,

Olivier

> On 22 May 2017, at 12:27, nilanjana <email address hidden> wrote:
>
> Question #633548 on MadGraph5_aMC@NLO changed:
> https://answers.launchpad.net/mg5amcnlo/+question/633548
>
> Status: Answered => Open
>
> nilanjana is still having a problem:
> Hi,
>
> Many thanks for your reply. Where can I get the file?
>
> Thanks,
> Nilanjana
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.

Thanks a lot Olivier.

So here is what is happening.

generate p p > tp1+ tp1-, (tp1+ > e+ ve tp+, tp+ > e+ ve vtp~), (tp1- > tp- u~ d, tp- > vtp u~ d)
successfully generates events

generate p p > tp2+ tp2-, (tp2+ > e+ ve tp1+, (tp1+ > e+ ve tp+, tp+ > e+ ve vtp~)),(tp2- > tp1- u~ d, (tp1- > tp- u~ d, tp- > vtp u~ d))
successfully generates events

BUT
generate p p > tp3+ tp3-, (tp3+ > e+ ve tp2+, (tp2+ > e+ ve tp1+, (tp1+ > e+ ve tp+, tp+ > e+ ve vtp~))), (tp3- > tp2- u~ d, (tp2- > tp1- u~ d, (tp1- > tp- u~ d, tp- > vtp u~ d)))

Gives the same error when I run the 'launch' command in Madgraph even after I have updated my gcc to 4.9.

I will be really thankful if you can help me out.

Thanks,
Nilanjana

Hi,

Since this is an internal problem of gcc. I do not see what I can do.

Sorry,

Olivier
> On 22 May 2017, at 13:53, nilanjana <email address hidden> wrote:
>
> Question #633548 on MadGraph5_aMC@NLO changed:
> https://answers.launchpad.net/mg5amcnlo/+question/633548
>
> Status: Answered => Open
>
> nilanjana is still having a problem:
> Thanks a lot Olivier.
>
> So here is what is happening.
>
> generate p p > tp1+ tp1-, (tp1+ > e+ ve tp+, tp+ > e+ ve vtp~), (tp1- > tp- u~ d, tp- > vtp u~ d)
> successfully generates events
>
> generate p p > tp2+ tp2-, (tp2+ > e+ ve tp1+, (tp1+ > e+ ve tp+, tp+ > e+ ve vtp~)),(tp2- > tp1- u~ d, (tp1- > tp- u~ d, tp- > vtp u~ d))
> successfully generates events
>
> BUT
> generate p p > tp3+ tp3-, (tp3+ > e+ ve tp2+, (tp2+ > e+ ve tp1+, (tp1+ > e+ ve tp+, tp+ > e+ ve vtp~))), (tp3- > tp2- u~ d, (tp2- > tp1- u~ d, (tp1- > tp- u~ d, tp- > vtp u~ d)))
>
> Gives the same error when I run the 'launch' command in Madgraph even
> after I have updated my gcc to 4.9.
>
> I will be really thankful if you can help me out.
>
> Thanks,
> Nilanjana
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.