Collective Communications on a Reconfigurable Optical Interconnect. - Ahmad Afsahi; Nikitas J. Dimopoulos (OPODIS, 1997)

Communications Latency Hiding Techniques for a Reconfigurable Optical Interconnect: Benchmark Studies. - Ahmad Afsahi; Nikitas J. Dimopoulos (PARA, 1998)

Hiding Communication Latency in Reconfigurable Message-Passing Environments. - Ahmad Afsahi; Nikitas J. Dimopoulos (IPPS/SPDP, 1999)

Efficient Communication Using Message Prediction for Cluster Multiprocessors. - Ahmad Afsahi; Nikitas J. Dimopoulos (CANPC, 2000)

Architectural Extensions to Support Efficient Communication Using Message Prediction. - Ahmad Afsahi; Nikitas J. Dimopoulos (HPCS, 2002)

Efficient communication using message prediction for clusters of multiprocessors. - Ahmad Afsahi; Nikitas J. Dimopoulos (Concurr. Comput. Pract. Exp., 2002)

Analysis of a Latency Hiding Broadcasting Algorithm on a Reconfigurable Optical Interconnect. - Ahmad Afsahi; Nikitas J. Dimopoulos (Parallel Process. Lett., 2002)

Performance characteristics of openMP constructs, and application benchmarks on a large symmetric multiprocessor. - Nathan R. Fredrickson; Ahmad Afsahi; Ying Qian (ICS, 2003)

Myrinet Networks: A Performance Study. - Ying Qian; Ahmad Afsahi; Reza Zamani (NCA, 2004)

Communication Characteristics of Message-Passing Scientific and Engineering Applications. - Reza Zamani; Ahmad Afsahi (IASTED PDCS, 2005)

Power-performance efficiency of asymmetric multiprocessors for multi-threaded scientific applications. - Ryan E. Grant; Ahmad Afsahi (IPDPS, 2006)

Efficient RDMA-based multi-port collectives on multi-rail QsNetII clusters. - Ying Qian; Ahmad Afsahi (IPDPS, 2006)

Performance evaluation of the Sun Fire Link SMP clusters. - Ying Qian; Ahmad Afsahi; Nathan R. Fredrickson; Reza Zamani (Int. J. High Perform. Comput. Netw., 2006)

Improving system efficiency through scheduling and power management. - Ryan E. Grant; Ahmad Afsahi (CLUSTER, 2007)

A feasibility analysis of power-awareness and energy minimization in modern interconnects for high-performance computing. - Reza Zamani; Ahmad Afsahi; Ying Qian; V. Carl Hamacher (CLUSTER, 2007)

Assessing the Ability of Computation/Communication Overlap and Communication Progress in Modern Interconnects. - Mohammad J. Rashti; Ahmad Afsahi (Hot Interconnects, 2007)

High Performance RDMA-based Multi-port All-gather on Multi-rail QsNet II. - Ying Qian; Ahmad Afsahi (HPCS, 2007)

RDMA-based and SMP-aware Multi-port All-Gather on Multi-rail QsNet^II SMP Clusters. - Ying Qian; Ahmad Afsahi (ICPP, 2007)

A Comprehensive Analysis of OpenMP Applications on Dual-Core Intel Xeon SMPs. - Ryan E. Grant; Ahmad Afsahi (IPDPS, 2007)

10-Gigabit iWARP Ethernet: Comparative Performance Analysis with InfiniBand and Myrinet-10G. - Mohammad J. Rashti; Ahmad Afsahi (IPDPS, 2007)

Improving Communication Progress and Overlap in MPI Rendezvous Protocol over RDMA-enabled Interconnects. - Mohammad J. Rashti; Ahmad Afsahi (HPCS, 2008)

An Analysis of QoS Provisioning for Sockets Direct Protocol vs. IPoIB over Modern InfiniBand Networks. - Ryan E. Grant; Mohammad J. Rashti; Ahmad Afsahi (ICPP Workshops, 2008)

Efficient shared memory and RDMA based collectives on multi-rail QsNetII SMP clusters. - Ying Qian; Ahmad Afsahi (Clust. Comput., 2008)

Evaluation of ConnectX Virtual Protocol Interconnect for Data Centers. - Ryan E. Grant; Ahmad Afsahi; Pavan Balaji (ICPADS, 2009)

Improving RDMA-based MPI eager protocol for frequently-used buffers. - Mohammad J. Rashti; Ahmad Afsahi (IPDPS, 2009)

Process Arrival Pattern and Shared Memory Aware Alltoall on InfiniBand. - Ying Qian; Ahmad Afsahi (PVM/MPI, 2009)

Improving energy efficiency of asymmetric chip multithreaded multiprocessors through reduced OS noise scheduling. - Ryan E. Grant; Ahmad Afsahi (Concurr. Comput. Pract. Exp., 2009)

A Speculative and Adaptive MPI Rendezvous Protocol Over RDMA-enabled Interconnects. - Mohammad J. Rashti; Ahmad Afsahi (Int. J. Parallel Program., 2009)

iWARP redefined: Scalable connectionless communication over high-speed Ethernet. - Mohammad J. Rashti; Ryan E. Grant; Ahmad Afsahi; Pavan Balaji (HiPC, 2010)

A study of hardware assisted IP over InfiniBand and its impact on enterprise data center performance. - Ryan E. Grant; Pavan Balaji; Ahmad Afsahi (ISPASS, 2010)

Adaptive estimation and prediction of power and performance in high performance computing. - Reza Zamani; Ahmad Afsahi (Comput. Sci. Res. Dev., 2010)

Investigating Scenario-Conscious Asynchronous Rendezvous over RDMA. - Judicael A. Zounmevo; Ahmad Afsahi (CLUSTER, 2011)

RDMA Capable iWARP over Datagrams. - Ryan E. Grant; Mohammad J. Rashti; Ahmad Afsahi; Pavan Balaji (IPDPS, 2011)

Multi-core and Network Aware MPI Topology Functions. - Mohammad J. Rashti; Jonathan Green; Pavan Balaji; Ahmad Afsahi; William Gropp (EuroMPI, 2011)

Exploiting application buffer reuse to improve MPI small message transfer protocols over RDMA-enabled networks. - Mohammad J. Rashti; Ahmad Afsahi (Clust. Comput., 2011)

Process Arrival Pattern Aware Alltoall and Allgather on InfiniBand Clusters. - Ying Qian; Ahmad Afsahi (Int. J. Parallel Program., 2011)

Designing an Offloaded Nonblocking MPI_Allgather Collective Using CORE-Direct. - Grigori Inozemtsev; Ahmad Afsahi (CLUSTER, 2012)

A study of hardware performance monitoring counter selection in power modeling of computing systems. - Reza Zamani; Ahmad Afsahi (IGCC, 2012)

An Efficient MPI Message Queue Mechanism for Large-scale Jobs. - Judicael A. Zounmevo; Ahmad Afsahi (ICPADS, 2012)

Toward Asynchronous and MPI-Interoperable Active Messages. - Xin Zhao; Darius Buntinas; Judicael A. Zounmevo; James Dinan; David Goodell; Pavan Balaji; Rajeev Thakur; Ahmad Afsahi; William Gropp (CCGRID, 2013)

Mercury: Enabling remote procedure call for high-performance computing. - Jérome Soumagne; Dries Kimpe; Judicael A. Zounmevo; Mohamad Chaarawi; Quincey Koziol; Ahmad Afsahi; Robert B. Ross (CLUSTER, 2013)

Using MPI in high-performance computing services. - Judicael A. Zounmevo; Dries Kimpe; Robert B. Ross; Ahmad Afsahi (EuroMPI, 2013)

GPU-Aware Intranode MPI_Allreduce. - Iman Faraji; Ahmad Afsahi (EuroMPI/ASIA, 2014)

Intra-Epoch Message Scheduling To Exploit Unused or Residual Overlapping Potential. - Judicael A. Zounmevo; Ahmad Afsahi (EuroMPI/ASIA, 2014)

Nonblocking Epochs in MPI One-Sided Communication. - Judicael A. Zounmevo; Xin Zhao; Pavan Balaji; William Gropp; Ahmad Afsahi (SC, 2014)

A fast and resource-conscious MPI message queue mechanism for large-scale jobs. - Judicael A. Zounmevo; Ahmad Afsahi (Future Gener. Comput. Syst., 2014)

Extreme-scale computing services over MPI: Experiences, observations and features proposal for next-generation message passing interface. - Judicael A. Zounmevo; Dries Kimpe; Robert B. Ross; Ahmad Afsahi (Int. J. High Perform. Comput. Appl., 2014)

Hyper-Q aware intranode MPI collectives on the GPU. - Iman Faraji; Ahmad Afsahi (ESPM@SC, 2015)

Scalable connectionless RDMA over unreliable datagrams. - Ryan E. Grant; Mohammad J. Rashti; Pavan Balaji; Ahmad Afsahi (Parallel Comput., 2015)

Scalable Network Communication Using Unreliable RDMA. - Ryan E. Grant; Mohammad J. Rashti; Pavan Balaji; Ahmad Afsahi (Handbook on Data Centers, 2015)

Topology-Aware GPU Selection on Multi-GPU Nodes. - Iman Faraji; Seyed Hessam Mirsadeghi; Ahmad Afsahi (IPDPS Workshops, 2016)

PTRAM: A Parallel Topology-and Routing-Aware Mapping Framework for Large-Scale HPC Systems. - Seyed Hessam Mirsadeghi; Ahmad Afsahi (IPDPS Workshops, 2016)

Topology-Aware Rank Reordering for MPI Collectives. - Seyed Hessam Mirsadeghi; Ahmad Afsahi (IPDPS Workshops, 2016)

MAGC: A Mapping Approach for GPU Clusters. - Seyed Hessam Mirsadeghi; Iman Faraji; Ahmad Afsahi (SBAC-PAD, 2016)

Exploiting Common Neighborhoods to Optimize MPI Neighborhood Collectives. - Seyed Hessam Mirsadeghi; Jesper Larsson Träff; Pavan Balaji; Ahmad Afsahi (HiPC, 2017)

Exploiting heterogeneity of communication channels for efficient GPU selection on multi-GPU nodes. - Iman Faraji; Seyed Hessam Mirsadeghi; Ahmad Afsahi (Parallel Comput., 2017)

The Case for Semi-Permanent Cache Occupancy: Understanding the Impact of Data Locality on Network Processing. - Matthew G. F. Dosanjh; S. Mahdieh Ghazimirsaeed; Ryan E. Grant; Whit Schonbein; Michael J. Levenhagen; Patrick G. Bridges; Ahmad Afsahi (ICPP, 2018)

A Dedicated Message Matching Mechanism for Collective Communications. - S. Mahdieh Ghazimirsaeed; Ryan E. Grant; Ahmad Afsahi (ICPP Workshops, 2018)

Design considerations for GPU-aware collective communications in MPI. - Iman Faraji; Ahmad Afsahi (Concurr. Comput. Pract. Exp., 2018)

Fuzzy Matching: Hardware Accelerated MPI Communication Middleware. - Matthew G. F. Dosanjh; Whit Schonbein; Ryan E. Grant; Patrick G. Bridges; S. Mahdieh Ghazimirsaeed; Ahmad Afsahi (CCGRID, 2019)

An Efficient Collaborative Communication Mechanism for MPI Neighborhood Collectives. - S. Mahdieh Ghazimirsaeed; Seyed Hessam Mirsadeghi; Ahmad Afsahi (IPDPS, 2019)

A dynamic, unified design for dedicated message matching engines for collective and point-to-point communications. - S. Mahdieh Ghazimirsaeed; Ryan E. Grant; Ahmad Afsahi (Parallel Comput., 2019)

Communication-aware message matching in MPI. - S. Mahdieh Ghazimirsaeed; Seyed Hessam Mirsadeghi; Ahmad Afsahi (Concurr. Comput. Pract. Exp., 2020)

Efficient Multi-Path NVLink/PCIe-Aware UCX based Collective Communication for Deep Learning. - Yiltan Hassan Temuçin; Amir Hossein Sojoodi; Pedram Alizadeh; Ahmad Afsahi (HOTI, 2021)

Micro-Benchmarking MPI Partitioned Point-to-Point Communication. - Yiltan Hassan Temuçin; Ryan E. Grant; Ahmad Afsahi (ICPP, 2022)

Efficient Process Arrival Pattern Aware Collective Communication for Deep Learning. - Pedram Alizadeh; Amir Hossein Sojoodi; Yiltan Hassan Temuçin; Ahmad Afsahi (EuroMPI, 2022)

Accelerating Deep Learning Using Interconnect-Aware UCX Communication for MPI Collectives. - Yiltan Hassan Temuçin; Amir Hossein Sojoodi; Pedram Alizadeh; Benjamin Kitor; Ahmad Afsahi (IEEE Micro, 2022)

A Dynamic Network-Native MPI Partitioned Aggregation Over InfiniBand Verbs. - Yiltan Hassan Temuçin; Scott Levy; Whit Schonbein; Ryan E. Grant; Ahmad Afsahi (CLUSTER, 2023)

A Topology- and Load-Aware Design for Neighborhood Allgather. - Hamed Sharifian; Amir Hossein Sojoodi; Ahmad Afsahi (CLUSTER, 2024)

Design and Implementation of MPI-Native GPU-Initiated MPI Partitioned Communication. - Yiltan Hassan Temuçin; Whit Schonbein; Scott Levy; Amir Hossein Sojoodi; Ryan E. Grant; Ahmad Afsahi (SC Workshops, 2024)

ROCm-Aware Leader-based Designs for MPI Neighbourhood Collectives. - Yiltan Hassan Temuçin; Mahdieh Gazimirsaeed; Ryan E. Grant; Ahmad Afsahi (ISC, 2024)

Utilizing Network Hardware Parallelism for MPI Partitioned Collective Communication. - Yiltan Hassan Temuçin; Amirreza Barati Sedeh; Whit Schonbein; Ryan E. Grant; Ahmad Afsahi (PDP, 2025)