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The main interconnect of the massively parallel Blue Genet/L is a three-dimensional torus network with dynamic virtual cut-through routing. This paper describes both the architecture and the microarchitecture of the torus and a network performance simulator. Both simulation results and hardware measurements are presented.

, IBM announced the start of a five-year effort to build a massively parallel computer, to be applied to the study of biomolecular phenomena such as protein folding. The project has two main goals: to advance our understanding of the mechanisms behind protein folding via large-scale simulation, and to explore novel ideas in massively parallel machine architecture and software. This project should enable biomolecular simulations that are orders of magnitude larger than current technology permits. Major areas of investigation include: how to most effectively utilize this novel platform to meet our scientific goals, how to make such massively parallel machines more usable, and how to achieve performance targets, with reasonable cost, through novel machine architectures. This paper provides an overview of the Blue Gene project at IBM Research. It includes some of the plans that have been made, the intended goals, and the anticipated challenges regarding the scientific work, the software application, and the hardware design.

Tomato leaf curl virus (TLCV) is a major viral disease in tomato that causes quantitative and qualitative losses to the crop. One hundred and fifty three tomato genotypes were screened for three consecutive years (2006-09) under glasshouse and field conditions for TLCV resistance. The incidence of disease was higher during the Rabi season as compared to the Kharif season trials. The reactions of different genotypes were studied by artificial inoculation.

Acuaria anthuris, the type species of the genus Acuaria, is described in detail and A. scutata is considered to be synonymous with it.Acuaria skrjabini from Passer domesticus has been described and compared with the original description. It is a new record for India and Hyderabad.Acuaria kungi n.sp. from Saxicoloides fulicata is described and compared with related species.Acuaria sp. is recorded from Pastor roseus.A new species of Cheilospirura from Accipiter nisus is described and compared with related species.