GridWay » Develop a GUI for GridWay

As stated in Development Roadmap.

Part of this has already been done. This task will last until 1 week before the end of the project.

The changes are made to support tool bar in the existing dag workflow. The existing layout must be changed to support frames and toolbar. The options for opening an existing dag file, creating a new dag file, resetting the dag Gtktextview and GtkTreeview, saving the dag file and quitting the application are added.

The changes are also made to ensure visual dagwork flow is generated when the user launches generate work flow.

Attached below the snap shot of Dag work flow

The Job State Information is refined to have two GTkTreeview's to support

• Job Information
• Host Information

The additional changes are made to allow option box for the user to select the required option for Job State Information

The Graphical User Interface is designed for Rank Generator using a GTKCombobox to display all resource variables
and a Gtktextview for the user to manipulate on the Resource Selection .

The possible values are

HOSTNAME    
ARCH    
OS_NAME    
OS_VERSION    
CPU_MODEL    
CPU_MHZ    
CPU_FREE    
CPU_SMP    
NODECOUNT    
SIZE_MEM_MB    
FREE_MEM_MB    
SIZE_DISK_MB    
FREE_DISK_MB    
LRMS_NAME    
LRMS_TYPE    
QUEUE_NAME    
QUEUE_NODECOUNT    
QUEUE_FREENODECOUNT    
QUEUE_MAXTIME    
QUEUE_MAXCPUTIME    
QUEUE_MAXCOUNT    
QUEUE_MAXRUNNINGJOBS    
QUEUE_MAXJOBSINQUEUE
QUEUE_DISPATCHTYPE    
QUEUE_PRIORITY
QUEUE_STATUS    

The Rank Generator is implemented using a new window popped up when user choose to provide resource selection in a separate gui. The resource selection options are selected using the combobox which get displayed on the gtktextview for the user to edit. When the user selects to edit the existing rank changes are made to ensure that previous value is copied in to the gtktextview.

• Changes are made to fetch Job State Information which helps the user to filter the job based on job or array id and Host Information is also displayed which enables user to select the job based on the host information. Additionally, changes are made to support the user to filter job based on user and dispatcher state. The results(filtered job details) are extracted to the gtktreeview.

The gui will use the attributes from the .gwguirc (configuration file). Glib's Key-value file parser is used for parsing the configuration file.

• The LOGINHOST parameter in the configuration file indicates that the GUI is detached as a thin client. It will run at user's machine and communicate via SSH with DRMAA commands, which reside at the GridWay machine

• Absence of the LOGINHOST parameter indicates that the GUI is running at the remote machine where GridWay is installed

The executable gridgui will look on the same directory where it's located for.gwguirc file to locate the path to temporary and executable directories.

Below is a .gwguirc sample configuration file

[gridkey]
TMP_DIR=/home/srini/Desktop/gridgui/src/tmp_dir/
EXEC_DIR=/home/srini/Desktop/gridgui/src/exec/
HOME_DIR=/home/srini/Desktop/gridgui/
LOGINHOST=gwgui@gridway.dacya.ucm.es

• The existing graphical user interface and implementation for rank generator is replicated for the requirements Generator. Additionally, one missing field HOSTNAME was added to resource selection in rank and requirements generator.

GTK Themes are added for documenting modules as thin client and exporting of display. Based on various themes snapshots are added to gridway documentation