Upgraded Programming Environment on T3E

We were running PrgEnv 3.1.0 and moved directly to PrgEnv 3.3.0.

The old Programming Environment is still available and you can switch to it out by doing the following command:

  module switch PrgEnv PrgEnv.3.1.0

  module switch PrgEnv.3.1.0 PrgEnv

Now PrgEnv.3.3.0 is the default and the old PrgEnv.3.1.0 will only be kept for a limited time.

The Message Passing Toolkit (MPT), Network Queuing Environment (NQE), and Cray Visualization Toolkit (CVT) are NOT affected by this upgrade.

Below are the most significant changes that are done with this upgrade. For further information, see the online documentation

PrgEnv 3.3

FORTRAN

• The CF90 now supports the modified Fortran trigonometric functions that accept arguments in degrees rather than radians.
• Variable names with leading underscores accepted with the -eQ option.
• Message level change, -M option.
• Directory specification for module files in Fortran.

PAT

• I/O improvements

PrgEnv 3.2

FORTRAN

• The assign command now accepts the -F global option for global layers.
• Comments that begin with an exclamation point (!) are recognized in NAMELIST input records. New options (-y, -S, -W and -U) on the assign command control the NAMELIST and list-directed output statements.
• Edit descriptor changes
• Fortan 95 features added
• New CPU_TIME intrinsic (Part of Fortran 95)
• Additional run-time check enhancements.
• ftpp replaced with integrated preprocessor.
• Support for FORM="SYSTEM" in OPEN and INQUIRE statements.

Totalview

• Totalview line mode enhancements

Known problems:

1. Since ftpp is now replaced with an integrated preprocessor, the -Wp flag is no longer supported.
   Example: instead of
   -Wp"-P -F $(DOPTNS)"
   you would now write:
   -F $(DOPTNS)

2. Users of Co-Array Fortran are encouraged to continue using PrgEnv.3.1.0. Cray is investigating a halting problem.