thanks Fons,
just one additional question: what about environemnt variables whose
values are unknown to the user starting the PROOF master?
For example, variables related to the parametrization of the node
configuration (i.e., input location, shared libraries location, etc.).
should they be read from a standard configuration file or is there a way
to force the execution of a login script for the remote proof session?
ciao,
piergiorgio
Piergiorgio Cerello
I.N.F.N. Sez. di Torino
Via P. Giuria 1
10125 - TORINO, Italy
Tel. +390116707416
Fax. +390116707417
On 13 Nov 2002, Fons Rademakers wrote:
>
> On Wed, 2002-11-13 at 15:22, Piergiorgio Cerello wrote:
> > Hi evereybody,
> > I have a couple of questions about PROOF remote session. In particular:
> >
> > - how to set environment variables in remote sessions
>
> via gProof->Exec():
>
> root [0] gROOT->Proof()
> **** Welcome to the PROOF server @ pcsalo.cern.ch ****
> **** PROOF slave server @ pcsalo.cern.ch started ****
> **** PROOF slave server @ pcsalo.cern.ch started ****
> PROOF set to parallel mode (2 slaves)
> root [1] gProof->Exec("gSystem->Setenv(\"AAP\",\"pipo\")")
> (Int_t)0
> root [2] gProof->Exec("gSystem->Getenv(\"AAP\")")
> (const char* 0x8533b7c)"pipo"
> (const char* 0x8533b7c)"pipo"
> (Int_t)0
>
> > - how to start a PROOF remote session with an extended executable (for
> > example, aliroot).
> > I could start root and load the shared libraries dynamically, but I
> > should extend the path. Otherwise, how can I associate to the
> > remote proof session a command other than "root"?
>
> in the remote sessions we will have something as root.exe running. We
> cannot run arbitrary executables. However, once the package manager is
> finished it will be easy to package all aliroot shared libs in a proof
> package and distribute that over all nodes:
>
> gProof->UploadPackage("aliroot.par")
>
> and load all shared libs using:
>
> gProof->EnablePackage("aliroot")
>
>
> Cheers, Fons.
>
>
> --
> Org: CERN, European Laboratory for Particle Physics.
> Mail: 1211 Geneve 23, Switzerland
> E-Mail: Fons.Rademakers@cern.ch Phone: +41 22 7679248
> WWW: http://root.cern.ch/~rdm/ Fax: +41 22 7679480
>
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