Seismic Un*x (SU), fully integrated with GêBR, is the major set of programs for seismic processing employed by GêBR users. However, to take full advantage of this package through GêBR, it is up to the users install SU properly in their systems.
Despite well documented, the whole install process of SU might be cumbersome to new users. To made this task easier, GêBR Project provides a script to carry out all necessary steps to install SU properly, at least on Ubuntu systems. The script, updated to install the latest version of SU (43R1), has been tested on Ubuntu LTS 10.04, but should work on newer ones too.
NOTE: The script was updated to install SU44R1 and was tested on Ubuntu LTS 14.04 as well as on Ubuntu LTS 16.04.
Follow these steps to install SU: (Click here to read the rest of this entry)
The release 0.16.1 of GêBR comes with astonishing new features. Up to now GêBR established direct connections with processing servers. From now on, there is a new player, the Maestro. GêBR connects to a Maestro and it provides the processing servers under its domain. Since the Maestro controls the processing servers, it has the right to select which one will be responsible for execute a job requested by the user. This selection takes many factors into account, like the working loads of each server and the speed of their CPU’s.
Better than that, the Maestro can put many servers together to cooperate to conclude a job. Whenever a job can be split into small independent parts, the Maestro can distribute them to several servers. The Maestro is still in charge of collecting all responses, merge them and send it back to GêBR, where the user can inspect it as a whole.
The user can still interfere in this process, choosing how agressive the Maestro will be in the hunting for resources.
Great news: now parameters of programs can be defined by variables from the dictionary and employing arithmetic expressions. This feature gives great flexibility to the user to parameterize programs. Once a program had its parameters defined by variables (or arithmetic expressions employing variables) from the dictionary, changes in the dictionary propagates to programs automaticaly.
Quantities defined in the dictionary can be shared among all flows of a line, for example. So, using variables to represent common quantities is the easiest way to keep all parameters consistently defined through the flows of a line.
Loop support is the second major improvement in this release. A flow can be executed multiple times (with slightly different parameters), by setting an iteration loop.
Besides, a large collection of processing flows, based on the well-stablished seismic processing package SU, is released together with SU menus. Those samples are accessable through Help/Samples in the menubar.
As usual, binary packages are distributed to major Linux distros.