[iris-bulk] DEADLINE APPROACHING - IRIS Pre-Workshops

[IRIS]

DEADLINE APPROACHING - IRIS Pre-Workshops
Registration Closes April 25, 2008.


DMC Tutorial
Digging in to JWEED, IRIS DMC's Event-based Data Request Tool

Tim Ahern - Afternoon Only
This year, the DMC tutorial will highlight JWEED, a map-based client  
application that lets you receive waveforms for earthquakes with user  
selectable attributes. The attributes include geographic location,  
time and magnitude as well as several event-station attributes  
(distance, azimuth, path). A user does not need to know which stations  
were operating at the time of the earthquakes. By leveraging  
information stored at the DMC, JWEED eliminates administrative burdens  
like calculating travel times and writing the email request format  
called "breq_fast". We will show users how to use JWEED to generate  
either batch requests or pull the data back to their workstation  
interactively. After a thorough tutorial on JWEED, we will solicit  
input from users as to how JWEED can be improved to meet your data  
requirements. This feedback will help to ensure that the IRIS user  
community is well served by the tools that the DMC has to offer. DMC  
staff will be on hand to answer any questions you might have during  
this short course.

More Information and Registration:
http://www.iris.edu/workshops/2008/data_access


Introduction to Multinode Computing using MPI

David Okaya - All Day

IRIS-DMS will sponsor a one-day tutorial on how to utilize multi-node  
parallel computing by using the MPI (Message Passing Interface)  
library within your geophysical software codes. Many of us have access  
to in house or campus multi-processor computers. However, in order to  
access many computing nodes at one time, particularly those  
distributed across a cluster, our software codes need to be programmed  
to ask for and to compute on the many nodes. Currently the most  
commonly used method to perform this task is MPI, a set of library  
calls that performs the communication to the multiple processors. MPI  
enables an application code to access from two to 512+ nodes (desktops  
to national supercomputer sites). The full-day pre-workshop tutorial  
will provide an overview of multi-node parallel computing strategies  
including one-task-many times (e.g., thousands of cross-correlations)  
and one-task parsed and distributed across many processors (e.g., 3D  
finite difference algorithm). Future directions of parallel computing  
will also be discussed. MPI basics will be presented. During the  
tutorial, participants will gain hands-on experience of writing simple  
codes containing MPI and then on how to run these codes. Tutorial  
instructors will provide access to a multi-node facility at their  
national computing centers; participants should be familiar with UNIX/ 
Linux and either C or Fortran.

More Information and Registration:
http://www.iris.edu/workshops/2008/mpi