Hi Wei,

Emil talks about gcc43 in his slides.

I am not sure I understand the migration dates suggested here. We need to
complete migration to SLC5 by mid-October. Six weeks from now. And we need
to test and validate in the meantime. However, we won't start migration till
reprocessing finishes, and reprocessing has not started. How do they fit?

Isn't it true that SLC4/gcc34 binaries run on SLC5? In that case, we can
migrate the worker nodes without affecting reprocessing. I thought that is
exactly what some sites have done. What am I missing? Cheers.

Charlie




On 9/2/09 8:38 AM, "Wei Yang" <[log in to unmask]> wrote:

> US ATLAS has set a milestone for site to complete SLC5 migration by mid-Oct
> (alone with OSG 1.2 migration). The current plan is for site to test,
> prepare and validate SLC5 locally. But the actual migration should wait
> until reprocessing finishes. The reprocessing could start anytime from now.
> 
> I also heard that future atlas release will include gcc 4.3. Anyone know
> more about that?
> 
> Wei Yang  |  [log in to unmask]  |  650-926-3338(O)
> 
> 
> 
> 
> 
>> From: Charles Young <[log in to unmask]>
>> Date: Wed, 02 Sep 2009 08:24:06 +0200
>> To: "Kim, Peter Chong-Ho" <[log in to unmask]>, atlas-sccs-planning-l
>> <[log in to unmask]>
>> Cc: Charles Young <[log in to unmask]>
>> Subject: Re: ATLAS/SCCS Planning Meeting: Sep. 2, 2009
>> 
>> Hi,
>> 
>> I would like to point people to Emil's talk today
>> (http://indico.cern.ch/conferenceDisplay.py?confId=50976#2009-09-02) on
>> platforms. Some points to note:
>> 
>>     - SLC5 as primary development platform
>>     - Deployment of SLC5 releases before ATLAS turn-on.
>>     - Switch of lxplus to SLC5 is imminent.
>>     - Many sites already SLC5 (running SLC4/gcc34 binary).
>> 
>> What Emil did not say is:
>> 
>>     - 15.54.0-SLHC _requires_ SLC5/gcc43(64-bit). Production use.
>> 
>> We must move our worker nodes to SLC5 (equivalent) as soon as possible.
>> Older releases still run. It will allow running 15.54.0-SLHC. We also need
>> at least one interactive node with SLC5. Cheers.
>> 
>> Charlie
>> 
>> 
>> 
>> 
>> On 9/2/09 7:58 AM, "Kim, Peter Chong-Ho" <[log in to unmask]> wrote:
>> 
>>> 
>>>  ATLAS SCCS Planning, September 2, 2009
>>>   ----------------------------------------------
>>> 
>>>      9:00 AM, SCCS Conf Rm A,
>>> 
>>>           to call in +1 510 665 5437, press 1, 3935#
>>> 
>>> 
>>>    Agenda:
>>> 
>>>    1. WT2 2009 hardware purchase
>>> 
>>>    2. Tier-2 Production and Operation
>>> 
>>>    3. SLC5/RHEL5 migration of WT2
>>> 
>>>    4. AOB
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>> 
>> -- 
>> Charles C. Young
>> M.S. 43, Stanford Linear Accelerator Center
>> P.O. Box 20450  
>> Stanford, CA 94309
>> [log in to unmask]
>> voice  (650) 926 2669
>> fax    (650) 926 2923
>> CERN GSM +41 76 487 2069
>> 
> 

-- 
Charles C. Young
M.S. 43, Stanford Linear Accelerator Center
P.O. Box 20450     
Stanford, CA 94309 
[log in to unmask]
voice  (650) 926 2669
fax    (650) 926 2923
CERN GSM +41 76 487 2069