Plasma turbulence calculations on the intel iPSC/860 (RX) hypercube
نویسندگان
چکیده
منابع مشابه
Fast eigenvalue calculations in a massively parallel plasma turbulence code
Article history: Received 14 October 2008 Received in revised form 31 July 2009 Accepted 2 December 2009 Available online 31 December 2009
متن کاملThe Conjugate Gradient Method for Large Sparse Matrices on the Intel Ipsc/860 Hypercube
For large sparse unstructured matrices, the critical parts of the Conjugate Gradient method on the iPSC/860 are the inter-processor communications needed for the matrix-vector multiplication and the vector-updates. In this work several implementations are tested and discussed in search for an optimal algorithm. They di er in distribution of the matrix and the various vectors over the processorg...
متن کاملOn Imaging of Plasma Turbulence
We discuss aspects of imaging of plasma turbulence, taking the standpoint that the imaging is a path for induction of law from complex signals. An example of induction of symbol from signals is illustrated. Then the image of plasma turbulence is extended, putting an emphasis on the identification of the nonlinear interaction in turbulence. By employing the bipspectral method, magnitudes of inte...
متن کاملNumerical Tokamak Turbulence Calculations on the CRAY T3E1
Full cross section calculations of ion-temperature-gradient-driven turbulence with Landau closure are being carried out as part of the Numerical Tokamak Turbulence Project, one of the U. S. Department of Energy’s Phase II Grand Challenges. To include the full cross section of a magnetic fusion device like the tokamak requires more memory and CPU time than is available on the National Energy Res...
متن کاملOn the bicoherence analysis of plasma turbulence
The bicoherence of fluctuations in a system of drift waves and zonal flows is discussed. In strong drift-wave turbulence, where broadband fluctuations are excited, the bicoherence is examined. A Langevin equation formalism of turbulent interactions allows us to relate the bicoherence coefficient to the projection of nonlinear force onto the test mode. The dependence of the summed bicoherence on...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Computing Systems in Engineering
سال: 1991
ISSN: 0956-0521
DOI: 10.1016/0956-0521(91)90030-9