Progress: We have been investigating the use of dynamic cache resizing techniques for energy reduction. The idea of cache resizing is to match the active cache size with the current program cache usage requirements. When the cache usage is small, we can turn off parts of the cache. Neither active switching energy nor static leakage energy is dissipated in the part of the cache that is turned of...

This paper presents a new version of ALFA VER92], a ne grain dataaow machine. This machine uses the static dataaow execution model and is constituted by 128 clusters; each cluster groups 128 identical Functional Units (FU) with homogeneous I/O conditions. The peculiarity of this machine is the possibility to map directly part of dataaow graph programs in hardware for the simple FU design VER94b...

In order to cope with the increasing leakage power and the increasing device variability in VLSI’s, the required control size of both the space-domain and the time-domain is decreasing. This paper shows the several recent fine-grain voltage engineerings for the low power VLSI circuit design. The space-domain fine-grain voltage engineering includes the fine-grain power supply voltage with 3D-str...

Electron micrographs of directcarbon replicas having magnifications of 5400 to 23, 500 times reveal in detail the grain size, shape, and packing of the particles comprising very fine-grained limestones. At these magnifications, however, only portions of a few grains in mediumor coarsegrained limestones can be observed. Grain contacts are mostly curvilinear in very fine-grained limestones but ar...

We introduce a coinductively-defined refinement relation on sequential non-deterministic reactive systems that guarantees total correctness. It allows the more refined system to both have less non-determinism in its outputs and to accept more inputs than the less refined system. Data reification in VDM is a special case of this refinement. Systems are considered at what we have called fine and ...

Parallel Constrained Delaunay Mesh (PCDM) is a 2D adaptive and irregular meshing algorithm. In PCDM one can explore concurrency using three different levels of granularity: (i) coarse-grain at the sub-mesh level, (ii) medium-grain at the cavity level and (iii) fine-grain at the element level. The mediumand fine-grain approaches can be used to improve the single-processor performance of coarse-g...

In fine–grain multithreading, the thread changes in each processor cycle, consecutive instructions are thus issued from different threads, and no data dependencies stall the pipeline. Enhanced fine–grain multithreading maintains a number of additional threads which are used to replace an active thread when it initiates a long–latency operation. Performance improvements due to enhanced multithre...

In the context of the dynamical systems of classical mechanics, we introduce two new notions called “algorithmic fine-grain and coarse-grain entropy”. The fine-grain algorithmic entropy is, on the one hand, a simple variant of the randomness tests of MartinLöf (and others) and is, on the other hand, a connecting link between description (Kolmogorov) complexity, Gibbs entropy and Boltzmann entro...