Chai is a new managed platform for GPGPU. It is a free and open source clean room workalike of the PeakStream platform. While not production-ready, the just-released alpha version is able to compile and run non-trivial PeakStream demo code on AMD and NVIDIA GPUs (e.g. conjugate gradient).

Chai combines an application virtual machine, garbage collection, auto-tuning JIT compiler, and high level array programming language implemented as an embedded domain-specific language in C++. The JIT back-end uses expectation-maximization to auto-tune and generate vectorized OpenCL. The JIT includes auto-tuned model families for GEMM and GEMV. Although originally developed for AMD GPUs, these parameterized kernel families also generalize to NVIDIA GPUs.

PeakStream, Inc., a leading software application platform provider for the high performance computing (HPC) market, today unveiled the PeakStream Platform. Available immediately, the PeakStream Platform makes it possible to easily program new high performance processors such as multi-core CPUs, graphics processing units (GPUs) and Cell processors, converting them into radically powerful computing engines for exponentially increased application performance and decreased time-to-solution at reduced cost. The company also announced the completion of equity financing totaling $17 million from Kleiner Perkins Caufield & Byers, Sequoia Capital and Foundation Capital. (www.peakstreaminc.com)