Generating high quality schedules for distributed applications on a Computational Grid is a challenging problem. Some experiments using Simulated Annealing as a scheduling mechanism for a ScaLAPACK LU solver on a Grid are described. The Simulated Annealing scheduler is compared to a Ad-Hoc Greedy scheduler used in earlier experiments. The Simulated Annealing scheduler exposes some assumptions b...

Grid computing platforms require to handle dynamic behaviour of computing resources within complex parallel applications. We introduce a formalization of adaptive behaviour that separates the abstract model of the application from the implementation design. We exemplify the abstract adaptation schema on two applications, and we show how two quite different approaches to adaptivity, the ASSIST e...

The relationship of contaminant gas concentration distribution influence on cross diffusion character and level among temperature, humidity was obtained according to the non-equilibrium thermodynamic theory. under different were discussed, combining real temperature in building room. results show that grads vapor mass are less than zero when additional coefficient both positive or negative, oth...

Penelitian ini bertujuan untuk melihat sebaran salinitas di perairan Provinsi Bengkulu pada saat kejadian IOD positif kuat yang terjadi tahun 2019. Daerah penelitian adalah wilayah berada posisi hingga dan menggunakan data arus zonal perkedalaman, temperatur perkedalaman salinitas. Untuk peta sebaran, kemudian diolah software GrADS (The Grid Analysis and Display System). Analisis digunakan diag...

We designed the Land Information System (LIS) to perform global land surface simulations at a resolution of 1-km or finer in real-time. Such an unprecedented scale and intensity in computing pose many challenges. In this article we will demonstrate some of our unique developments and implementations in high performance computing with a Beowulf Linux cluster, to meet these challenges and reach o...