GLVLSI 2010 has some interesting papers:

• A model to exploit power-performance efficiency in superscalar processors via structure resizing, dynamically turn off structures. It should also apply to vector units.
• The challenges of implementing fine-grained power gating, interesting work from Holst centere.

CF 2010 has some interesting works.

Preprints of some papers in ECVW 2010 are available.

Exploiting Memory Access Patterns to Improve Memory Performance in Data Parallel Architectures, from David Kaeli’s NUCAR group, to appear in TPDS.