jeffhammond/pytorch-china-2026-nccl-tutorial
NCCL tutorial at PyTorch Conference China 2026
HPC software @NVIDIA in 🇫🇮. Previously @Intel HPC, @argonne-lcf w/ Blue Gene and MPI. PhD in Chemistry from @uchicago for work on @nwchemgit. He/him/hän.
Repositories
jeffhammond/PRK
This is a set of simple programs that can be used to explore the features of a parallel platform.
jeffhammond/blog
My blog.
jeffhammond/STREAM
STREAM benchmark
jeffhammond/mukautuva
An MPI ABI compatibility layer
jeffhammond/jeffhammond.github.io
My Home Page
jeffhammond/cuda-ipc-benchmarks
jeffhammond/ompi
Open MPI main development repository
jeffhammond/armci-mpi
An implementation of ARMCI using MPI one-sided communication (RMA)
jeffhammond/blis
BLAS-like Library Instantiation Software Framework
jeffhammond/ompi-accumulate-indexed-mcve
jeffhammond/HPCInfo
Information about many aspects of high-performance computing. Wiki content moved to ~/docs.
jeffhammond/vapaa
A standalone implementation of the MPI Fortran 2018 module
jeffhammond/vpu-count
Information about AVX-512 support on recent Intel processors
jeffhammond/sfmalloc
SFMalloc (http://aces.snu.ac.kr/Center_for_Manycore_Programming/SFMalloc.html)
jeffhammond/dpcpp-tutorial
Intel Data Parallel C++ (and SYCL 2020) Tutorial.
jeffhammond/plumber
PLUMBER: ProfiLer for Understanding of M(PI) BEhavioR
jeffhammond/macports-ports
The MacPorts ports tree
jeffhammond/BigMPI
Implementation of MPI that supports large counts
jeffhammond/havaita
MPI Fortran type inference
jeffhammond/gpu_dfcc
GPU-accelerated coupled cluster with density fitting
jeffhammond/nwchem-tce-triples-kernels
NWChem TCE CCSD(T) loop-driven kernels for performance optimization experiments
jeffhammond/nwchem
NWChem: Open Source High-Performance Computational Chemistry
jeffhammond/Cthulhu
The Thing That Should Not Be
jeffhammond/mpich
Official MPICH Repository
jeffhammond/spack-packages
Spack's community package recipes
jeffhammond/stencil-demo
jeffhammond/spaghetty
Self-optimizing Python Automatic Generator of Hierarchically blockEd Tensor Transpose librarY
jeffhammond/NiceWait
MPI interposition layer to stop blocking calls from spin-waiting
jeffhammond/llvm-blog-www
The LLVM Project Blog