{"id":12957,"date":"2021-11-30T19:32:13","date_gmt":"2021-12-01T00:32:13","guid":{"rendered":"https:\/\/carleton.ca\/scs\/?page_id=12957"},"modified":"2026-06-02T14:59:25","modified_gmt":"2026-06-02T18:59:25","slug":"tr-97-17-reducing-hot-spot-contention-in-shared-memory-multiprocessor-systems","status":"publish","type":"page","link":"https:\/\/carleton.ca\/scs\/research\/scs-technical-reports\/technical-reports-1997\/tr-97-17-reducing-hot-spot-contention-in-shared-memory-multiprocessor-systems\/","title":{"rendered":"TR-97-17: Reducing Hot-Spot Contention in Shared Memory Multiprocessor Systems"},"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-97-17: Reducing Hot-Spot Contention in Shared Memory Multiprocessor Systems\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-1997\/\">Technical Report<\/a> TR-97-17<br>\nSeptember 1997<\/p>\n\n\n\n<h2 id=\"tr-97-16-reducing-hot-spot-contention-in-shared-memory-multiprocessor-systems\" class=\"wp-block-heading tr_t1\">TR-97-16: Reducing Hot-Spot Contention in Shared Memory Multiprocessor Systems<\/h2>\n\n\n\n<div class=\"tr_t3\">\n<div class=\"tr_t3\">\n<div class=\"tr_t3\">\n<div class=\"tr_t3\">\n<div class=\"tr_t3\">\n<div class=\"tr_t3\">\n<div class=\"tr_t3\">\n<div class=\"tr_t3\">Sivarama P. Dandamudi<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div>\n<h3>Abstract<\/h3>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<p>In parallel systems it is possible for several processors to request concurrent access to a shared data structure such as a synchronization variable. Such an access pattern causes what is known as hot- spot contention. In shared-memory multiprocessor systems that use a multistage interconnection network, hot-spot contention may result in &#8220;tree saturation&#8221; that degrades the system performance. It is important, therefore, to manage hot-spot contention properly. This paper reviews the existing strategies to reduce the effects of hot-spot contention. We first quantify the effects of hot-spot contention and identify the objectives of a hot-spot management strategy. We propose a taxonomy to categorize these strategies into one of avoidance-based, prevention-based, or detection-based methods. We then review and compare several representative strategies that have been proposed to reduce the effects of hot-spot contention. We conclude the paper by identifying several issues that need further research.<\/p>\n\n\n\n<p><a href=\"https:\/\/carleton.ca\/scs\/wp-content\/uploads\/sites\/260\/TR-97-17.pdf\">TR-97-17.pdf<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Carleton University Technical Report TR-97-17 September 1997 TR-97-16: Reducing Hot-Spot Contention in Shared Memory Multiprocessor Systems Sivarama P. Dandamudi Abstract In parallel systems it is possible for several processors to request concurrent access to a shared data structure such as a synchronization variable. Such an access pattern causes what is known as hot- spot contention. 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