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These benchmarks are often used for comparing different Message Passing Inerface (MPI) implementations and the underlying network interconnect. Here we use the OSU micro-benchmark (version 7.2) to assess the performance in terms of bandwidth achieved with an Apptainer container between 2 processors on different nodes with OpenMPI (version 4.1.6) on the Norwegian academic High Performance Computers (HPC) located in Tromsø (Fram) and Trondheim (Betzy). https://w3id.org/ro-id/3125b7be-03f9-447e-806f-20beb66f7949/ http://schema.org/encodingFormat application/ld+json https://w3id.org/ro-id/3125b7be-03f9-447e-806f-20beb66f7949/ http://schema.org/hasPart https://w3id.org/ro-id/3125b7be-03f9-447e-806f-20beb66f7949/folders/0713cf9a-9e96-4b8d-ad2f-98bf61cc5952 https://w3id.org/ro-id/3125b7be-03f9-447e-806f-20beb66f7949/ http://schema.org/hasPart https://w3id.org/ro-id/3125b7be-03f9-447e-806f-20beb66f7949/folders/19ddc9fa-1065-4a56-9b08-990a54320bcb https://w3id.org/ro-id/3125b7be-03f9-447e-806f-20beb66f7949/ http://schema.org/hasPart https://w3id.org/ro-id/3125b7be-03f9-447e-806f-20beb66f7949/folders/96655418-c684-4531-a81b-d5641f486a67 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https://w3id.org/ro/terms/earth-science#DataResearchObject https://w3id.org/ro-id/3125b7be-03f9-447e-806f-20beb66f7949/ https://w3id.org/ro/terms/earth-science#template https://w3id.org/ro/terms/earth-science#DataCentricResearchObjectTemplate https://w3id.org/ro-id/3125b7be-03f9-447e-806f-20beb66f7949/ https://www.w3.org/ns/iana/link-relations/relation#cite-as Iaquinta, Jean. "OSU MPI Get Bandwidth Test v7.2 with OpenMPI 4.1.6 on Fram & Betzy." ROHub. 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https://w3id.org/ro-id/enrichment/d39345c0-3733-49c2-9e44-260b2ecebc54 https://w3id.org/ro/terms/earth-science#score 29.4 https://w3id.org/ro-id/enrichment/dd3b2031-ff30-4994-b2a1-2c6eef2e778d http://schema.org/name computer science https://w3id.org/ro-id/enrichment/dd3b2031-ff30-4994-b2a1-2c6eef2e778d http://www.w3.org/1999/02/22-rdf-syntax-ns#type https://w3id.org/contentdesc#Domain https://w3id.org/ro-id/enrichment/dd3b2031-ff30-4994-b2a1-2c6eef2e778d https://w3id.org/ro/terms/earth-science#normScore 77.34375 https://w3id.org/ro-id/enrichment/dd3b2031-ff30-4994-b2a1-2c6eef2e778d https://w3id.org/ro/terms/earth-science#score 9.9 https://w3id.org/ro-id/enrichment/df38aaa4-e6c0-4f06-b1cc-6e1cd0851853 http://schema.org/name Here we use the OSU micro-benchmark (version 7.2) to assess the performance in terms of bandwidth achieved with an Apptainer container between 2 processors on different nodes with OpenMPI (version 4.1.6) on the Norwegian academic High Performance Computers (HPC) located in Tromsø (Fram) and Trondheim (Betzy) https://w3id.org/ro-id/enrichment/df38aaa4-e6c0-4f06-b1cc-6e1cd0851853 http://www.w3.org/1999/02/22-rdf-syntax-ns#type https://w3id.org/ro/terms/earth-science#Sentence https://w3id.org/ro-id/enrichment/df38aaa4-e6c0-4f06-b1cc-6e1cd0851853 https://w3id.org/ro/terms/earth-science#normScore 22.689938398357288 https://w3id.org/ro-id/enrichment/df38aaa4-e6c0-4f06-b1cc-6e1cd0851853 https://w3id.org/ro/terms/earth-science#score 22.1 https://w3id.org/ro-id/enrichment/e0fe982a-152a-4bd7-8386-24d7f4467838 http://schema.org/name The Ohio State University (OSU) Micro Benchmarks (OMB) are a widely used suite of benchmarks for measuring and evaluating the performance of MPI operations for point-to-point, multi-pair, and collective communications. https://w3id.org/ro-id/enrichment/e0fe982a-152a-4bd7-8386-24d7f4467838 http://www.w3.org/1999/02/22-rdf-syntax-ns#type https://w3id.org/ro/terms/earth-science#Sentence 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https://w3id.org/ro-id/enrichment/e93be2dd-9065-4e04-a2b3-b4eae4a98aaf https://w3id.org/ro/terms/earth-science#normScore 8.112874779541444 https://w3id.org/ro-id/enrichment/e93be2dd-9065-4e04-a2b3-b4eae4a98aaf https://w3id.org/ro/terms/earth-science#score 4.6 https://www.sciopen.com/article/10.1007/s11390-023-2907-5 http://schema.org/author https://orcid.org/0000-0002-8763-1643 https://www.sciopen.com/article/10.1007/s11390-023-2907-5 http://schema.org/contentUrl https://www.sciopen.com/article/10.1007/s11390-023-2907-5 https://www.sciopen.com/article/10.1007/s11390-023-2907-5 http://schema.org/creator https://orcid.org/0000-0002-8763-1643 https://www.sciopen.com/article/10.1007/s11390-023-2907-5 http://schema.org/dateCreated 2024-01-16 16:05:31.945926+00:00 https://www.sciopen.com/article/10.1007/s11390-023-2907-5 http://schema.org/dateModified 2024-01-16 16:05:33.287119+00:00 https://www.sciopen.com/article/10.1007/s11390-023-2907-5 http://schema.org/description Abstract The Slingshot interconnect designed by HPE/Cray is becoming more relevant in high-performance computing with its deployment on the upcoming exascale systems. In particular, it is the interconnect empowering the first exascale and highest-ranked supercomputer in the world, Frontier. It offers various features such as adaptive routing, congestion control, and isolated workloads. The deployment of newer interconnects sparks interest related to performance, scalability, and any potential bottlenecks as they are critical elements contributing to the scalability across nodes on these systems. In this paper, we delve into the challenges the Slingshot interconnect poses with current state-of-the-art MPI (message passing interface) libraries. In particular, we look at the scalability performance when using Slingshot across nodes. We present a comprehensive evaluation using various MPI and communication libraries including Cray MPICH, OpenMPI + UCX, RCCL, and MVAPICH2 on CPUs and GPUs on the Spock system, an early access cluster deployed with Slingshot-10, AMD MI100 GPUs and AMD Epyc Rome CPUs to emulate the Frontier system. We also evaluate preliminary CPU-b:ed support of MPI libraries on the Slingshot-11 interconnect. https://www.sciopen.com/article/10.1007/s11390-023-2907-5 http://schema.org/keywords Slingshot https://www.sciopen.com/article/10.1007/s11390-023-2907-5 http://schema.org/keywords interconnect https://www.sciopen.com/article/10.1007/s11390-023-2907-5 http://schema.org/license https://choosealicense.com/no-permission/ https://www.sciopen.com/article/10.1007/s11390-023-2907-5 http://schema.org/name High Performance MPI over the Slingshot Interconnect https://www.sciopen.com/article/10.1007/s11390-023-2907-5 http://schema.org/sdDatePublished 2024-01-16 16:05:31.945926+00:00 https://www.sciopen.com/article/10.1007/s11390-023-2907-5 http://www.w3.org/1999/02/22-rdf-syntax-ns#type http://purl.org/wf4ever/wf4ever#Resource https://www.sciopen.com/article/10.1007/s11390-023-2907-5 http://www.w3.org/1999/02/22-rdf-syntax-ns#type http://schema.org/Article https://www.sciopen.com/article/10.1007/s11390-023-2907-5 http://www.w3.org/1999/02/22-rdf-syntax-ns#type http://schema.org/MediaObject https://w3id.org/np/RAbTNL-MqINOjjCeX3nAMrRDCyOmb4gntNkoKy6QhZinQ/provenance https://w3id.org/np/RAbTNL-MqINOjjCeX3nAMrRDCyOmb4gntNkoKy6QhZinQ/assertion http://www.w3.org/ns/prov#wasDerivedFrom https://api.rohub.org/api/ros/3125b7be-03f9-447e-806f-20beb66f7949/crate/download/ro-crate-metadata.json https://w3id.org/np/RAbTNL-MqINOjjCeX3nAMrRDCyOmb4gntNkoKy6QhZinQ/pubinfo https://w3id.org/np/RAbTNL-MqINOjjCeX3nAMrRDCyOmb4gntNkoKy6QhZinQ http://purl.org/dc/terms/created 2025-11-11T16:05:20.561+01:00 https://w3id.org/np/RAbTNL-MqINOjjCeX3nAMrRDCyOmb4gntNkoKy6QhZinQ http://purl.org/nanopub/x/introduces https://w3id.org/ro-id/3125b7be-03f9-447e-806f-20beb66f7949/ https://w3id.org/np/RAbTNL-MqINOjjCeX3nAMrRDCyOmb4gntNkoKy6QhZinQ http://www.w3.org/1999/02/22-rdf-syntax-ns#type http://purl.org/nanopub/x/RoCrateNanopub https://w3id.org/np/RAbTNL-MqINOjjCeX3nAMrRDCyOmb4gntNkoKy6QhZinQ http://www.w3.org/2000/01/rdf-schema#label OSU MPI Get Bandwidth Test v7.2 with OpenMPI 4.1.6 on Fram & Betzy https://w3id.org/np/RAbTNL-MqINOjjCeX3nAMrRDCyOmb4gntNkoKy6QhZinQ/sig http://purl.org/nanopub/x/hasAlgorithm RSA https://w3id.org/np/RAbTNL-MqINOjjCeX3nAMrRDCyOmb4gntNkoKy6QhZinQ/sig http://purl.org/nanopub/x/hasPublicKey MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4pPaESKwmC6l37P86K6TNLq6yeQtc7m9CvcqauLs/1FC0viHvQnFBgxj0a+loPDv/Egwe6OqFpa0iW9Ypnyz9YPoh+pxbRXonbuMOb+8Ry9hXZ+TEKfWjhjVDGEaClwfRwglh2HI/xfV4CD9AgvDOEoZQiyta8a90PYwJ3G6e70oCHTn61+OWTkI9KRYHOYgg3btdy2Z7q/30PTFawb2ZT5aIfIJYobUYv2a7yhtcqWCHZeKv0bxGnRjTFNx1rscBMlLJSzvRtpQc1cCRVEPFZHo1adaXCI9tGvn4cxeNQ96y8dxkN1XhpaJairde+23MDzf42Oe97KG2HYzKiyVnQIDAQAB https://w3id.org/np/RAbTNL-MqINOjjCeX3nAMrRDCyOmb4gntNkoKy6QhZinQ/sig http://purl.org/nanopub/x/hasSignature RTauwmc6sXnxvFLUE72uBv0Y2tfRq2U1LtXdetYWlaP/h3+f1//6/TXHwkxV43IqESqNs5bDfIb1eaQl3uGCidO3WlK3JCgax9wfkox0WqUEni4lw2tE3Tg2qRNKsmRsc71IoTJ21C/hLb0r9aWYIeMgvD+6Uul7n+LmHUFuX2ju7uUvujlzaLV0UvAN3CbnESUNCDw1Gbn95kjUk2OpuqrlVbSE3Y5R5y1VEqIKQAE/Ylp0Vh9I1YPZxvFI+oVEt6+q3XV6mOVJR/PKaZLV4j3MAi6G1rXAc6ntqEcnuz0U0x9tTqmPxkMgcF80ebYMqb4ft0lcj3KUagFz5UdzmA== https://w3id.org/np/RAbTNL-MqINOjjCeX3nAMrRDCyOmb4gntNkoKy6QhZinQ/sig http://purl.org/nanopub/x/hasSignatureTarget https://w3id.org/np/RAbTNL-MqINOjjCeX3nAMrRDCyOmb4gntNkoKy6QhZinQ https://w3id.org/np/RAbTNL-MqINOjjCeX3nAMrRDCyOmb4gntNkoKy6QhZinQ/sig http://purl.org/nanopub/x/signedBy https://w3id.org/kpxl/gen/terms/RoCrateBot