Dror G Feitelson

US Patent:

58777644, Mar 2, 1999

Filed:

Oct 23, 1992

Appl. No.:

7/965590

Inventors:

Dror Gershon Feitelson - Bronx NY
Blake Gordon Fitch - New Rochelle NY
Mark Edwin Giampapa - Irvington NY

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 314

US Classification:

345347

Abstract:

An I/O control window is created on a user's terminal screen when a parallel program is executing. The I/O control window displays an array of graphical elements (preferably small colored squares), which are partitioned into groups of one or more such elements, each partition representing a task (or thread) of the parallel program. In each partition there is one graphical element which represents the I/O status of the task or thread represented by that partition and is called an I/O status indicator. Each I/O status indicator is capable of assuming any one of several different graphical states (each graphical state preferably being a color for the graphical element), one of which indicates that the corresponding task or thread has provided text output that has not been displayed to the user yet and another of which indicates that the corresponding task (or thread) is requesting text input from the user. The user can open a text window on the user's terminal screen which is dedicated for I/O with a particular task (or thread) by placing a mouse on a graphical element in the I/O control array partition representing that particular task (or thread) and pressing a specified mouse button. Many separate I/O windows like this may be opened at the same time and any I/O window can be closed as well through use of the mouse.

US Patent:

54795982, Dec 26, 1995

Filed:

Oct 23, 1992

Appl. No.:

7/965591

Inventors:

Dror G. Feitelson - Bronx NY
Blake G. Fitch - New Rochelle NY
Mark E. Giampapa - Irvington NY

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 314

US Classification:

395155

Abstract:

An output window is created on the user's terminal screen when a parallel program is executing. This window displays an array of graphical elements (each preferably a small square area), which are partitioned into groups of one or more graphical elements per group, each partition representing a task or thread of the parallel program. These graphical elements are capable of assuming any one of several (or many) different graphical states (each of these states preferably being a different color for the graphical clement). A task running on a parallel processor system can set its associated graphical elements to different states (e. g. , colors) during execution of the task generally through a special instruction in the task that specifics which graphical clement (of the graphical elements assigned to that task) should be set and to what state. When such an instruction is executed by a processor running that task, a message is sent to the module that controls the graphical element display at the user's terminal. The message identifies the task issuing the message, the particular graphical element affected among the graphical elements assigned to that task and the particular state for that graphical element.