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NEWS!
- Atos 47r3 Release Candidate test data available now
- Technical content
47r3 Release Candidate Phase to start on 19 July 2022
Update of implementation timeline
Announcement and availability of test data
Implementation plan
To switch the operational forecast to the Atos machine we will use a process similar to the implementation of new model cycles. During the Release Candidate Phase we will run a frozen test system in parallel and close to the operational schedule. A Release Candidate Phase of at least 3 months will give forecast users the opportunity to not only test the model output itself but use it to test all other components of the new infrastructure in Bologna. While the model output data on the Atos machine will be different from that currently produced operationally on the Cray, it is expected to be meteorological equivalent.
Indicative timeline
Technical content
Users should no see any technical differences between the Atos IFS Cycle 47r3 data and products and current operational ones produced on our Cray systems in Reading. Users can continue using their existing software packages to decode the Atos IFS Cycle 47r3 data. See 47r3 software requirements for more details.
Atos IFS Cycle 47r3 test data and products
Test data in MARS
IFS Cycle 47r3 Release Candidate test data is available from MARS with experiment version 0077 (MARS keyword EXPVER=0077):
- HRES (class=od, stream=oper, expver=77)
- HRES-WAM (class=od, stream=wave, expver=77)
- ENS (class=od, stream=enfo, expver=77)
- ENS-WAM (class=od, stream=waef, expver=77)
Only users registered with access to MARS will be able to access these test data sets. The data should not be used for operational forecasting. Please report any problems you find with this data via the ECMWF Support Portal.
The Release Candidate test data in ECPDS, available from , will be generated daily, shortly behind operational high resolution and ensemble runs and based on the operational dissemination requirements. The availability of the test data does not follow any strict schedule.
For longer time series available beta test data with EXPVER=9077 from can be used.
Test data in dissemination
Atos IFS Cycle 47r3 test data from the Release Candidate Phase will be available through the test dissemination system, starting from the 00Z run on . Users with access to ECPDS can login to the test system in Bologna at https://xdiss-monitor.ecmwf.int/do/start and trigger the transmission of test products in the usual manner. To receive the test data from Bologna, we will remind users to to have their firewall open to the relevant ECPDS Data Movers (cf. https://confluence.ecmwf.int/x/FyFEDg):
Internet:
- 136.156.192.0/26
- 136.156.193.0/26
RMDCN:
- 136.156.196.0/26
- 136.156.197.0/26
The Atos IFS Cycle 47r3 test products are available as version number 77 (file names ending with '77' with the ecCodes key expver=77 in the GRIB messages) and are intended to be generated shortly behind real-time. The test products will be based on the operational dissemination requirements and updated in near real time when changes to the requirements are made. The test products will be available for HRES, HRES-WAM, ENS, ENS-WAM and ENS extended. Test data for the Boundary Condition program, HRES and ENS runs at 06:00 and 18:00 UTC will become available shortly.
Access to the operational PREd will be closed at 9 UTC on 16 October. Any changes to the operational requirements can be implemented after 10 UTC on 18 October.
If you don't have access to the ECPDS system or PREd or should you require any assistance with Atos IFS Cycle 47r3 test dissemination products, please contact us via the Support Portal.
Dissemination hosts on test ECPDS
The ECPDS dissemination hosts on the test dissemination system in Bologna have been copied over from the operational ECPDS system in Reading. Unlike the PREd requirements, the destination hosts in Bologna will not be automatically updated during the Release Candidate Phase, unless agreed with our users. Please do contact us via the Support Portal if any destination hosts need to be updated under ECPDS in Bologna.
Migration of data dissemination
ECMWF will also contact very shortly our users with access to ECPDS to offer further options to test the ECPDS from Bologna. See Migration of data dissemination (ECPDS).
ECPDS through ECaccess not yet available
ECaccess in Bologna is unfortunately not yet available. This users using ECPDS through ECaccess will not yet be able to transfer the ECPDS products. Please contact us via the Support Portal to discuss what other options are available.
Graphical display of test data in ecCharts
Layers of Atos IFS Cycle 47r3 Release Candidate test data will be released in ecCharts at a later stage, most likely in September.
Web charts based on test data
The OpenCharts based on the Atos IFS Cycle 47r3 Release Candidate test data will be released at a later stage, most likely in September.
WMO Essential and Additional test data
Atos IFS Cycle 47r3 WMO (Essential and Additional) test data will be made available very shortly.
Time-critical applications
Option 1 - simple time-critical jobs
Member State users of the "Simple time-critical jobs" framework will be able to test their jobs on Atos when ECaccess in Bologna become available.
Options 2 and 3
Option 2 or 3 time-critical applications can be tested with the Atos IFS Cycle 47r3 test data retrieved from MARS or received in Dissemination.
ECPDS Destination hosts in Bologna for Option 2 activities