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View article: Now More Than Ever, Foundational AI Research and Infrastructure Depends on the Federal Government
Now More Than Ever, Foundational AI Research and Infrastructure Depends on the Federal Government Open
Leadership in the field of AI is vital for our nation's economy and security. Maintaining this leadership requires investments by the federal government. The federal investment in foundation AI research is essential for U.S. leadership in …
View article: The Post-Quantum Cryptography Transition: Making Progress, But Still a Long Road Ahead
The Post-Quantum Cryptography Transition: Making Progress, But Still a Long Road Ahead Open
The development of quantum computing threatens the security of our currently widely deployed cryptographic algorithms. While signicant progress has been made in developing post-quantum cryptography (PQC) standards to protect against future…
View article: PETSc/TAO Users Manual Revision 3.22
PETSc/TAO Users Manual Revision 3.22 Open
This manual describes the use of the Portable, Extensible Toolkit for Scientific Computation (PETSc) and the Toolkit for Advanced Optimization (TAO) for the numerical solution of partial differential equations (PDEs) and related problems o…
View article: HiCCL: A Hierarchical Collective Communication Library
HiCCL: A Hierarchical Collective Communication Library Open
HiCCL (Hierarchical Collective Communication Library) addresses the growing complexity and diversity in high-performance network architectures. As GPU systems have envolved into networks of GPUs with different multilevel communication hier…
View article: Visual Artifacts in Boundary Conditions
Visual Artifacts in Boundary Conditions Open
Many approaches for the efficient solution of PDEs involve adaptive grids and/or approximations. These approximations may involve a series of computationally regular grids, on each of which a separate approximation is applied. The interfac…
View article: CommBench: Micro-Benchmarking Hierarchical Networks with Multi-GPU, Multi-NIC Nodes
CommBench: Micro-Benchmarking Hierarchical Networks with Multi-GPU, Multi-NIC Nodes Open
Modern high-performance computing systems have multiple GPUs and network interface cards (NICs) per node. The resulting network architectures have multilevel hierarchies of subnetworks with different interconnect and software technologies.…
View article: PETSc/TAO Users Manual V.3.21
PETSc/TAO Users Manual V.3.21 Open
This manual describes the use of the Portable, Extensible Toolkit for Scientific Computation (PETSc) and the Toolkit for Advanced Optimization (TAO) for the numerical solution of partial differential equations (PDEs) and related problems o…
View article: Quantum-centric Supercomputing for Materials Science: A Perspective on Challenges and Future Directions
Quantum-centric Supercomputing for Materials Science: A Perspective on Challenges and Future Directions Open
Computational models are an essential tool for the design, characterization, and discovery of novel materials. Hard computational tasks in materials science stretch the limits of existing high-performance supercomputing centers, consuming …
View article: PETSc/TAO Users Manual (Rev. 3.20)
PETSc/TAO Users Manual (Rev. 3.20) Open
This manual describes the use of the Portable, Extensible Toolkit for Scientific Computation (PETSc) and the Toolkit for Advanced Optimization (TAO) for the numerical solution of partial differential equations and related problems on high-…
View article: Fine-grained Policy-driven I/O Sharing for Burst Buffers
Fine-grained Policy-driven I/O Sharing for Burst Buffers Open
A burst buffer is a common method to bridge the performance gap between the I/O needs of modern supercomputing applications and the performance of the shared file system on large-scale supercomputers. However, existing I/O sharing methods …
View article: IEEE Division VIII Delegate/Director Candidates
IEEE Division VIII Delegate/Director Candidates Open
Division V delegate/director and the IEEE Division VIII delegate/director.Division delegate/ directors serve multiple roles; they are voting members of the IEEE Assembly, Board of Directors, and Technical Activities Board.Divisions V and V…
View article: Fine-grained Policy-driven I/O Sharing for Burst Buffers
Fine-grained Policy-driven I/O Sharing for Burst Buffers Open
A burst buffer is a common method to bridge the performance gap between the I/O needs of modern supercomputing applications and the performance of the shared file system on large-scale supercomputers. However, existing I/O sharing methods …
View article: PETSc/TAO Users Manual (Rev. 3.19)
PETSc/TAO Users Manual (Rev. 3.19) Open
This manual describes the use of the Portable, Extensible Toolkit for Scientific Computation (PETSc) and the Toolkit for Advanced Optimization (TAO) for the numerical solution of partial differential equations and related problems on high-…
View article: Performance Analysis and Optimal Node-aware Communication for Enlarged Conjugate Gradient Methods
Performance Analysis and Optimal Node-aware Communication for Enlarged Conjugate Gradient Methods Open
Krylov methods are a key way of solving large sparse linear systems of equations but suffer from poor strong scalability on distributed memory machines. This is due to high synchronization costs from large numbers of collective communicati…
View article: Message from the ExaMPI22 Workshop Chairs
Message from the ExaMPI22 Workshop Chairs Open
Message from the ExaMPI22 Workshop ChairsExaMPI is a long-standing workshop focusing on the usage and evolution of the MPI standard in the Exascale era.ExaMPI is reaching its ninth installment in 2022.Hosted within the Supercomputing confe…
View article: The Delta Gateway: Exploring Community Use of GPU Resources through a Science Gateway
The Delta Gateway: Exploring Community Use of GPU Resources through a Science Gateway Open
What could a research team accomplish if given access to the latest GPU hardware? A molecular dynamics research team could process protein-ligand tests using 100 GPUs on Delta in about 3.6 days, a task that would take their local lab a ful…
View article: Characterizing the Performance of Node-Aware Strategies for Irregular Point-to-Point Communication on Heterogeneous Architectures
Characterizing the Performance of Node-Aware Strategies for Irregular Point-to-Point Communication on Heterogeneous Architectures Open
Supercomputer architectures are trending toward higher computational throughput due to the inclusion of heterogeneous compute nodes. These multi-GPU nodes increase on-node computational efficiency, while also increasing the amount of data …