National Weather Service United States Department of Commerce

Dangerous Heat Persists in the Southern U.S.;

Heat advisories and Excessive Heat Warnings persist across the Southern Plains and the Lower Mississippi Valley. Conditions should slowly improve in these area by Thursday. Severe storms and localized areas of flash flooding may occur across parts of the mid Mississippi Valley and portions of the southern and central High Plains. Read More >

CODE B18.0r1.11


Build 18 - What's New?

1.  RedHat 7 / CentOS 7, 64-bit support.

2.  The DMD product has been adapted to use SAILS and MRLE scans.

3.  The TRU product has been adapted to use SAILS scans.

4.  Added support for site-specific product_generation_ tables files.

5.  Improvements to the RPG's estimator of initial system differential phase.

6.  Removal of several legacy 8-data level products.



Only the Linux PC platform is currently supported for CODE.

Red Hat 7 is the official operating system for ORPG while CentOS 7 is a good alternative operating system for CODE.

General Notes:

Do not attempt to compile the ORPG source code without meeting the system requirements stated below.

  • Attempting to use any version of Linux other than Red Hat Enterprise 7 Desktop with Workstation option or CentOS 7 Desktop
  • Attempting to use versions of compilers not listed will require changes to the source code and perhaps modification of makefiles.


Workstation Platform


The Operational Configuration provides a development platform that is essentially the same as the operational system. This is not required for algorithm development or implementation. The Development Configuration provides an acceptable platform for running an ORPG clone and developing ORPG algorithms but does not match the performance criteria of the operational system.

Performance Testing. Any desktop PC with a current processor and 2 GB of RAM would be sufficient in order to determine the relative performance of an algorithm.

  Operational Configuration (Note 1) Development Configuration       Notes
Workstation AMD Opteron 250 Dual Processor Any PC with a Pentium 4 or equivalent processor.  
Operating System Red Hat Enterprise 7 Desktop with Workstation Option (64-bit) Red Hat Enterprise 7 Desktop with Workstation Option (64-bit) or CentOS 7 Desktop
Physical Memory 2 GB 1 GB RAM minimum
2 GB recommended
Swap Space TBD 1 GB minimum
Disk Drive serial ATA drives 1 GB plus for each ORPG account  
Display Capability N/A 24-Bit color, 1024x768 min, 1280x1024 recommended  


Note 1: With the amount of overhead in the operational system there is little reason to replicate it for development. Any recent quality desktop PC with 2 GB of RAM can be used to obtain a good idea of an algorithms relative performance.
Note 2: Red Hat Enterprise 7 Workstation has been selected as the operating system for the deployed ORPG. The ORPG software will compile as 64-bit or 32-bit.  CentOS 7 has been tested to be a good alternative Operating System of Red Hat 7.
Note 3: Currently 1 GB of swap space is sufficient for the CODE development environment.
Note 4: Does not include space for compilers and other development tools.


Software Language Compilers


The CODE Linux platform uses libraries and software development tools that are provided with the basic distribution of Red Hat Enterprise 5 Desktop with Workstation option.

Compilers used to build the Operational ORPG

  • Compilers and utilities provided with Red Hat Enterprise Workstation
    • GCC 4.1.2 (includes gcc, g++, and gfortran)
    • GNU make 3.81-1.1
    • GNU linker in binutils
    • glibc 2.5-18