{"id":14560,"date":"2022-05-08T22:35:19","date_gmt":"2022-05-09T02:35:19","guid":{"rendered":"https:\/\/carleton.ca\/scs\/?page_id=14560"},"modified":"2026-06-02T14:59:22","modified_gmt":"2026-06-02T18:59:22","slug":"tr-155-hot-spot-contention-in-binary-hypercube-networks","status":"publish","type":"page","link":"https:\/\/carleton.ca\/scs\/research\/scs-technical-reports\/technical-reports-1989\/tr-155-hot-spot-contention-in-binary-hypercube-networks\/","title":{"rendered":"TR-155: Hot-Spot Contention in Binary Hypercube Networks"},"content":{"rendered":"\n<section class=\"w-screen px-6 cu-section cu-section--white ml-offset-center md:px-8 lg:px-14\">\n    <div class=\"space-y-6 cu-max-w-child-5xl  md:space-y-10 cu-prose-first-last\">\n\n            <div class=\"cu-textmedia flex flex-col lg:flex-row mx-auto gap-6 md:gap-10 my-6 md:my-12 first:mt-0 max-w-5xl\">\n        <div class=\"justify-start cu-textmedia-content cu-prose-first-last\" style=\"flex: 0 0 100%;\">\n            <header class=\"font-light prose-xl cu-pageheader md:prose-2xl cu-component-updated cu-prose-first-last\">\n                                    <h1 class=\"cu-prose-first-last font-semibold !mt-2 mb-4 md:mb-6 relative after:absolute after:h-px after:bottom-0 after:bg-cu-red after:left-px text-3xl md:text-4xl lg:text-5xl lg:leading-[3.5rem] pb-5 after:w-10 text-cu-black-700 not-prose\">\n                        TR-155: Hot-Spot Contention in Binary Hypercube Networks\n                    <\/h1>\n                \n                                \n                            <\/header>\n\n                    <\/div>\n\n            <\/div>\n\n    <\/div>\n<\/section>\n\n<p>Carleton University<br>\n<a href=\"https:\/\/carleton.ca\/scs\/research\/scs-technical-reports\/technical-reports-1989\/\">Technical Report<\/a> <strong>TR-155<\/strong><br>\nApril 1989<\/p>\n\n\n\n<h2 id=\"hot-spot-contention-in-binary-hypercube-networks\" class=\"wp-block-heading tr_t1\">Hot-Spot Contention in Binary Hypercube Networks<\/h2>\n\n\n\n<div class=\"tr_t3\">\n<div class=\"tr_t3\">\n<div class=\"tr_t3\">Sivarama P. Dandamudi &amp; Derek L. Eager<\/div>\n<\/div>\n<\/div>\n\n\n\n<div>\n<h3>Abstract<\/h3>\n<p>In large parallel processing systems there is a possibility of many processors requesting access to the same data item, or &#8220;service&#8221; by the same processor, at the same time. Such hot-spot contention creates congestion in the system. Hot-spot contention has been studied previously in the context of shared-memory multiprocessor systems. This paper considers the impact of hot-spot contention in distributed-memory multicomputer systems. Since the binary hypercube network offers a reasonable compromise between network cost and performance, two hypercube-based static interconnection networks are considered. One is a standard binary hypercube and the other is a binary hypercube-based hierarchical interconnection network. The impact of hot-spot contention in both these networks is studied. Two techniques have been proposed for shared-memory multiprocessor systems to increase the system capacity in handling hot-spot references: hardware combining, and software combining. The effectiveness of the two corresponding approaches for multicomputer systems is studied here.\n<\/p><\/div>\n\n\n\n<p><a href=\"https:\/\/carleton.ca\/scs\/wp-content\/uploads\/sites\/260\/TR-155.pdf\">TR-155.pdf<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Carleton University Technical Report TR-155 April 1989 Hot-Spot Contention in Binary Hypercube Networks Sivarama P. Dandamudi &amp; Derek L. Eager Abstract In large parallel processing systems there is a possibility of many processors requesting access to the same data item, or &#8220;service&#8221; by the same processor, at the same time. Such hot-spot contention creates congestion [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":11903,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_cu_dining_location_slug":"","footnotes":"","_links_to":"","_links_to_target":""},"cu_page_type":[],"class_list":["post-14560","page","type-page","status-publish","hentry"],"acf":{"cu_post_thumbnail":false},"_links":{"self":[{"href":"https:\/\/carleton.ca\/scs\/wp-json\/wp\/v2\/pages\/14560","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/carleton.ca\/scs\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/carleton.ca\/scs\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/carleton.ca\/scs\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/carleton.ca\/scs\/wp-json\/wp\/v2\/comments?post=14560"}],"version-history":[{"count":1,"href":"https:\/\/carleton.ca\/scs\/wp-json\/wp\/v2\/pages\/14560\/revisions"}],"predecessor-version":[{"id":14561,"href":"https:\/\/carleton.ca\/scs\/wp-json\/wp\/v2\/pages\/14560\/revisions\/14561"}],"up":[{"embeddable":true,"href":"https:\/\/carleton.ca\/scs\/wp-json\/wp\/v2\/pages\/11903"}],"wp:attachment":[{"href":"https:\/\/carleton.ca\/scs\/wp-json\/wp\/v2\/media?parent=14560"}],"wp:term":[{"taxonomy":"cu_page_type","embeddable":true,"href":"https:\/\/carleton.ca\/scs\/wp-json\/wp\/v2\/cu_page_type?post=14560"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}