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Stephen J Heil, 66Montgomery, NJ

Known as:
Stephen A Heil Steve J Heil Steven J Heil Stephen J Hill Stephan Hail
Related to:
Tyler N Walden 36 Mark Homan 53 Paul Homan 83 Christopher Vennitti 54 Christopher Homan 55 Maryann Fox 77

Stephen Heil Phones & Addresses

Skillman, NJ   

Philadelphia, PA   

East Windsor, NJ   

Stamford, CT   

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License Records

Stephen J Heil

Address:
Skillman, NJ 08558
Licenses:
License #: CA017196L - Expired
Category: Accountancy
Type: Certified Public Accountant

Stephen Heil resumes & CV records

Resumes

Stephen Heil Photo 36

Stephen Heil

Stephen Heil Photo 37

Stephen Heil

Stephen Heil Photo 38

Stephen Heil

Location:
United States
Stephen Heil Photo 39

Stephen Heil

Location:
United States

Publications & IP owners

Us Patents

Method And Apparatus For Cache Memory Access With Separate Fetch And Store Queues

US Patent:
5450564, Sep 12, 1995
Filed:
Feb 3, 1993
Appl. No.:
8/013254
Inventors:
Joseph A. Hassler - West Chester PA
Gregory K. Deal - West Chester PA
Timothy A. Koss - Pottstown PA
Stephen F. Heil - West Chester PA
Assignee:
Unisys Corporation - Plymouth Meeting PA
International Classification:
G06F 1318
G06F 506
G06F 13364
US Classification:
395495
Abstract:
A two-way set associative cache memory system for a parallel-pipelined computer system uses separate queue structures to hold main memory fetch and store requests generated by the central processing unit (CPU). A memory access unit, coupled between the cache memory system and the CPU selects the next request to be processed by the main memory from between the requests at the heads of the fetch and store queues. The request at the head of the fetch queue is preferred over the request at the head of the store queue unless the memory partition to be used by the fetch request is still busy with a previous request while the partition to be used by the store request is idle. Data retrieved from the main memory replaces data in the cache according to an algorithm that prefers empty pages within a set to pages that contain data and prefers pages that do not have pending update requests scheduled to pages that do have pending update requests scheduled. In the event that only pages having pending update requests are found, input requests to the cache are inhibited until at least one fetch request for a page in the set is completed and the page is no longer marked as having a pending update request.

Method And Apparatus For Cache Memory Access With Separate Fetch And Store Queues

US Patent:
5590379, Dec 31, 1996
Filed:
Mar 14, 1994
Appl. No.:
8/212129
Inventors:
Joseph A. Hassler - West Chester PA
Gregory K. Deal - West Chester PA
Timothy A. Koss - Pottstown PA
Stephen F. Heil - West Chester PA
Assignee:
Unisys Corporation - Blue Bell PA
International Classification:
G06F 1318
G06F 506
G06F 13364
US Classification:
395851
Abstract:
A two-way set associative cache memory system for a parallel-pipelined computer system uses separate queue structures to hold main memory fetch and store requests generated by the central processing unit (CPU). A memory access unit, coupled between the cache memory system and the CPU selects the next request to be processed by the main memory from between the requests at the heads of the fetch and store queues. The request at the head of the fetch queue is preferred over the request at the head of the store queue unless the memory partition to be used by the fetch request is still busy with a previous request while the partition to be used by the store request is idle. Data retrieved from the main memory replaces data in the cache according to an algorithm that prefers empty pages within a set to pages that contain data and prefers pages that do not have pending update requests scheduled to pages that do have pending update requests scheduled. In the event that only pages having pending update requests are found, input requests to the cache are inhibited until at least one fetch request for a page in the set is completed and the page is no longer marked as having a pending update request.

Possible Relatives

Cynthia M Heil  David R Heil  Dale F Heil  Dana K Heil  Debra A Heil  Aaron M Heil  Delores B Heil  Stephen H Last  Stephen V Johnson  Stephen Stamps 

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