Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

If you see this error message when attempting to connect to ccaECMWF:

Code Block
% ssh troifs0@ecaccess.ecmwf.int
Unable to negotiate with 193.61.196.110 port 22: no matching key exchange method found. Their offer: diffie-hellman-group1-sha1
Couldn't read packet: Connection reset by peer

...

The first connection is made with ssh after which you choose which the host you need, 'cca' and 'ccb' are the two ECMWF Cray high performance computers. You will be instructed which of cca and ccb to use during the workshop.

...

Code Block
languagebash
titleLogin to ECMWF Cray (replace with your given training account id)
% ssh troifs1@ecaccess.ecmwf.int
Authorized access only.

***************************************************************
   For further information, read the ECaccess documentation at:

   https://softwareconfluence.ecmwf.int/wiki/display/ECAC/ECaccess+Home

   You can also use ECaccess to load & download files from your
   EChome, ECscratch or ECfs directories using the ECaccess FTP
   server:

   ftp://uid@ecaccess.ecmwf.int/

   Please note you must use your UID and ActivID code to login!
***************************************************************

troifs1@racc-1.rdg.ac.uk's password: *******
Select hostname (ecgate, cca, ccb) [ecgate]: ccb

...

Code Block
languagebash
titleRetrieve files from cray from scratch directory (replace with your training ID username!)
sftp troifs1@ecaccess.ecmwf.int
Authorized access only.

***************************************************************
   For further information, read the ECaccess documentation at:

   https://softwareconfluence.ecmwf.int/wiki/display/ECAC/ECaccess+Home

   You can also use ECaccess to load & download files from your
   EChome, ECscratch or ECfs directories using the ECaccess FTP
   server:

   ftp://uid@ecaccess.ecmwf.int/

   Please note you must use your UID and ActivID code to login!
***************************************************************

troifs1@140.105.20.128's password: ******
Connected to ecaccess.ecmwf.int.
sftp> ls
CSOMARS    ECFS       ECHOME     ECHOST     ECJOBS     ECMARS     ECSCRATCH  
ECTMP      TMP
sftp> cd ECHOST
sftp> ls
cca     ecgate
sftp> cd cca
sftp> cd scratch/ectrain/troifs1/myexpt/output
sftp> get mslp.grib
sftp> bye

...