LDAS MPI Users



MPI Users

This page displays the list of search users in the LDAS MPI job queue. a site when you hit SUBMIT button to submit the request.

Response:

Each item in the list is an MPI User e.g. search26, the affilated LDAS job id, the number of nodes used, the list of nodes used and the shared object being loaded.



Beowulf Users

This page displays all the wrapperAPI jobs on all nodes at a given instance at a site when you hit SUBMIT button to submit the request.

Response:

each item on the list shows the total number of nodes in used by a search user and the actual nodes used. Compare this to the information listed in the MPI Users queue to verify that wrapper jobs have been started.

Nodes Users

This page issues a test to check out all nodes and beowulf users on the system to see if they are ready for ldas jobs. A dataPipeline is submitted for each search user to use the nodes on the system and the logs are used to verify that wrapper jobs have been started and completed. If there is any errors e.g. nodes not connected, jobs failed the test fails and the errors are reported at the display window.

Response:

The indicator on the top right window shows when the test is run and whether it passed or failed. More details are displayed in the bottom window.

Debug flags:

The cntlmonAPI resource variable DEBUG_NODESUSERS can be set for the following purposes:





Beowulf Node Usage

This page displays load and memory usage and system statistics for a set of nodes at a site when you hit SUBMIT button to submit the request.

The actual node names are displayed when the mouse is placed over the submit button since the nodes may not be in exact dictionary order and some nodes may be taken out.

Response:

each item on the list shows per node: uptime, number of jobs and beowulf users, cpu idle time, memory usage, swap space and buffers usage.