v0.3.0

========================= Release Notes v0.3.0 =========================

API:

• H2 added a thin GPU portability layer that supports CUDA and ROCm
  (HIP) programming environments.
• Added a spdlog-based logging capability.
• Added initial support for (sequential) tensors.

Performance optimizations:

Internal features:

• MIOpen is supported as a backend for "DNN compute kernels" in
  DistConv.
• DistConv is supported on ROCm systems.
• Added support for Gitlab CI.
• Support for DaCe convolution kernels in DistConv

Build system:

• Several updates to support ROCm 5.*.
• Requires CMake >= 3.21.
• Requires ROCm 5, with the latest available minor release being
  STRONGLY recommended, when targeting ROCm-based platforms. The
  current packages we need in this stack are:
  -- HIP (host)
  -- hipCUB
  -- ROCm-SMI
  -- MIOpen
  -- ROC-tracer

Bug fixes:

• Fixed a bug in kernel selection for batchnorm gradients in the case of
  overlap/strides.

Retired features:

v0.2.1

Updated to support Aluminum v0.7 API. Aluminum dependency is only
required for DistConv feature.

v0.2.0

Updated to support the Aluminum v0.5 API

v0.1

============================== Release Notes: v0.1 ==============================

Initial release of the DiHydrogen Distributed Tensor Library.

DiHydrogen is the second version of the Hydrogen fork of the
well-known distributed linear algebra library, Elemental. DiHydrogen
aims to be a basic distributed multilinear algebra interface with a
particular emphasis on the needs of the distributed machine learning
effort, LBANN.

Internal features:

• Support for the DistConv legacy library
• Added multi-dimensional tensor class
• Added support for older CUDA architectures v3.0+
• Use CUB for memory management
• Support for point-to-point (P2P) library
• Support for NVSHMEM halo exchange

DistConv Legacy:

• batchnorm
• channel-wise softmax
• concat
• convolution
• deconv
• leaky-relu
• pooling
• relu
• slice
• softmax

Build system:

• Require C++14
• Added support for cuDNN v8

Bug fixes:

• Fixed build issues with GCC8