Owner

eschnett

5 indexed repositories · View on GitHub

SIMD.jl
Explicit SIMD vector operations for Julia

Julia · 195 stars
FastSphericalHarmonics.jl
Easy-to-use Spherical Harmonics, based on FastTransforms.jl

Julia · 25 stars
ZeroRing.jl
A number type that has only a single value (zero) and needs no storage

Julia · 2 stars
mpif
MPI Fortran bindings

Fortran · 1 star
mpi_abi_wrapper
Implement the MPI ABI on top of an existing MPI implementation

C · 0 stars

Beginner friendly Everything

Open All

Build fails with recent mpi-abi-stubs Open

Difficulty 3/5 1-2 days Newbie friendliness 52/100

eschnett/mpif#10 · Opened Sep 9, 2026
Add pointer to this project to the mpi-abi-stubs Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

eschnett/mpi_abi_wrapper#9 · 1 comment · Opened Aug 25, 2026
Test against `mpi_abi_wrapper` as well Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

eschnett/mpif#7 · Opened Aug 24, 2026
install-openmpi.sh builds Open MPI with no RDMA-capable transport, so MPI_Win_create falls to emulated one-sided Open

Difficulty 5/5 Over a week Newbie friendliness 38/100

eschnett/mpif#6 · 1 comment · Opened Aug 19, 2026
libmpif leaves __aarch64_cas4_acq_rel undefined when C and Fortran come from different toolchains Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

eschnett/mpif#5 · Opened Aug 15, 2026
mpich-prune.txt leaves include/mpix.h in the prefix Open

Difficulty 1/5 Under an hour Newbie friendliness 88/100

eschnett/mpif#3 · Opened Aug 13, 2026
Can we get a release Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

eschnett/SIMD.jl#168 · Opened Aug 3, 2026
OpenCL tests are failing Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

eschnett/SIMD.jl#167 · Opened Jul 2, 2026
`promote_type` not defined Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

eschnett/SIMD.jl#155 · Opened Feb 25, 2026
Expected behavior of SIMD vectors vs. Numbers Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

eschnett/SIMD.jl#148 · 1 comment · Opened Sep 15, 2025
reinterpret for non-native isbits types Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

eschnett/SIMD.jl#145 · 2 comments · Opened Sep 10, 2025
Bug with Qualified `^` call Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

eschnett/SIMD.jl#140 · 1 comment · Opened Jun 13, 2025
UInt128 not actually supported Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

eschnett/SIMD.jl#136 · 1 comment · Opened Dec 21, 2024
Intermittent segfaults with Julia 1.11.2, possibly architecture-specific (AMD Zen 4), possibly alignment ? Open

Difficulty 4/5 3-5 days Newbie friendliness 28/100

eschnett/SIMD.jl#135 · 15 comments · Opened Dec 16, 2024
Indexing `Vector`s with `Vec{N,Int32}` generates invalid LLVM assembly Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

eschnett/SIMD.jl#133 · 1 reaction · Opened Nov 6, 2024
Support for BFloat16s Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

eschnett/SIMD.jl#123 · Opened Aug 8, 2024
StrideArraysCore not able to SIMD Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

eschnett/SIMD.jl#121 · 4 comments · Opened Apr 10, 2024
Add support for reshaped + reinterpreted arrays Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

eschnett/SIMD.jl#118 · Opened Oct 27, 2023
Tuples of `Vec`s always compare as equal, even when they are not Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

eschnett/SIMD.jl#115 · 10 comments · Opened Aug 5, 2023
Vectorized math functions Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

eschnett/SIMD.jl#106 · 5 comments · Opened Mar 9, 2023
Support `vgather` with all Int types Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

eschnett/SIMD.jl#98 · 1 comment · 1 reaction · Opened Sep 2, 2022
vload from array with ndims=2 Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

eschnett/SIMD.jl#97 · 4 comments · Opened Sep 1, 2022
efficient vector masks / reducing bitvector-mask-conversions Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

eschnett/SIMD.jl#95 · 2 comments · Opened Feb 11, 2022
Wrapping `Vararg` directly in UnionAll is deprecated Open

Difficulty 2/5 1-3 hours Newbie friendliness 42/100

eschnett/SIMD.jl#94 · 1 comment · Opened Jan 27, 2022
Phase error in spin_sph ? Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

eschnett/FastSphericalHarmonics.jl#1 · 3 comments · Opened Jan 26, 2022
Support for bit packing and unpacking operations (PEXT, PDEP) Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

eschnett/SIMD.jl#93 · 2 comments · Opened Jan 11, 2022
Requesting Support for `fmaddsub` Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

eschnett/SIMD.jl#88 · 16 comments · Opened Jul 22, 2021
Complex algebra Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

eschnett/ZeroRing.jl#1 · Opened Aug 5, 2020
Handling complex arrays Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

eschnett/SIMD.jl#60 · 20 comments · Opened Jan 13, 2020
Include rsqrt function for Vec{4,Float32} Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

eschnett/SIMD.jl#57 · 12 comments · Opened Sep 10, 2019
Unable to use vgather with indices other than (U)Int64 Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

eschnett/SIMD.jl#56 · 1 reaction · Opened Aug 2, 2019
Interoperability of indexing-based SIMD interface Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

eschnett/SIMD.jl#45 · 4 comments · Opened Feb 7, 2019

eschnett

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