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| Subject: |
[franklin-users] Franklin quad core upgrade phase 3 |
| Author: |
Helen He <yhe_at_lbl.gov> |
| Date: |
2008-08-27 15:58:44 |
| Dear Franklin users,
Franklin quad core upgrade phase 3 is tentatively scheduled to start on
Sept 10. Franklin will be first in full machine production with 8
columns of quad core nodes and 9 columns of dual core nodes first (phase
3a, total of 28,496 compute cores). Then 7 columns of dual core nodes
will be moved one week later to the test environment for quad core
upgrade and Franklin will be in production with 8 columns of quad core
nodes and 2 columns of dual core nodes (phase 3b, total of 20,432
compute cores).
Two important messages regarding phase 3 upgrade are:
1) Charging for computing on the quad core nodes will start from phase
3. However, the charging rate will be the same as for the dual core
nodes. i.e., wall clock hours x num_nodes_used x 2 cores/node (instead
of 4 cores/node here) x 6.5 machine charge factor x queue priority. And
there will be no new allocations from DOE for the allocation year AY08.
2) The default user environment will be set to quad core environment.
This means that the default built executable will be targeted to run on
the quad core nodes.
Please refer to the detailed upgrade schedule information along with the
user environment changes and usage guide for phase 3 at:
https://www.nersc.gov/nusers/systems/franklin/quadcore_upgrade.php#phase3
Best Regards,
Helen He
NERSC User Services
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