Over at the Stream Computing Blog, Vincent Hindriksen has posted an overview of the Heterogeneous Systems Architecture (HSA). “HSA changes the way memory is handled by eliminating a hierarchy in processing-units. In a hUMA architecture, the CPU and the GPU (inside the APU) have full access to the entire system memory.”
In a new white paper, AMD redefines the Compute Core as “Any core capable of running at least one process in its own context and virtual memory space, independently from other cores.” It’s a fascinating look into the new Kaveri chip and HSA.
The HSA Foundation seeks to create applications that seamlessly blend scalar processing on the CPU, parallel processing on the GPU, and optimized processing on the DSP via high bandwidth shared memory access enabling greater application performance at low power consumption.