Power savings via software


This press release is particularly fluffy, but whatever the reality of this very vaguely defined algorithmic development the basic message is correct to validate nine terabytes of data (nine million million or a number with 12 zeros) in less than 20 minutes, without compromising accuracy.  Ordinarily, using the same system,…

The Amory Lovins bottleneck


Lovins observes that power inputs in many industrial processes go into a bottleneck that makes power conservation hard if you start at the wrong end.  The power goes into a long pipeline of process that emerges on the other end with some useful (in theory) work. If you start on…

Instructions per joule – a good start


... multi-GHz superscalar quad-core processors can execute approximately 100 million instructions per Joule, assuming all cores are active and avoid stalls or mispredictions. Lower-frequency in-order CPUs, in contrast, can provide over 1 billion instructions per Joule—an order of magnitude more efficient while still running at 1/3rd the frequency. Worse yet,…