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A nite element method for computational uid dynamics has been implemented on the Connection Machine systems CM-2 and CM-200. An implicit iterative solution strategy , based on the preconditioned matrix-free GMRES algorithm, is employed. Parallel data structures built on both nodal and elemental sets are used to achieve maximum paral-lelization.… (More)

- Kapil K. Mathur, S. Lennart Johnsson
- Parallel Computing
- 1994

Some level{2 and level{3 Distributed Basic Linear Algebra Subroutines (DBLAS) that have been implemented on the Connection Machine system CM{200 are described. For matrix{matrix multiplication, both the nonsystolic and the systolic algorithms are outlined. A systolic algorithm that computes the product matrix in{place is described in detail. All algorithms… (More)

- V Venkatakrishnan, H D Simon, +111 authors Newton-Krylov-Schwarz
- 1995

Adapted hybrid prismatic-tetrahedral grid about a hemisphere. (b) Surface Mach contours on the symmetry plane for supersonic laminar ow (M 1 = 1:4, Re = 1000) 128]. 37 Figure 8. Comparison of various discretization methods for the circular advection problem 13]. (a) Grid used for the two-dimensional advection equation. (b) Piecewise-constant nite-volume… (More)

A data parallel implementation of the multiplication of matrices of arbitrary shapes and sizes is presented. A systolic algorithm based on a rectangular processor layout is used by the implementation. All processors contain submatrices of the same size for a given operand. Matrix-vector multiplication is used as a primitive for local matrix-matrix… (More)

- K K Mathur, S J Rahman, B L Wattal
- The Journal of communicable diseases
- 1981

- S J Rahman, P K Menon, R Rajagopal, K K Mathur
- The Journal of communicable diseases
- 1986

- K K Mathur, G Harpalani, N L Kalra, G G Murthy, M V Narasimham
- Indian journal of malariology
- 1992

Barmer district of Rajasthan in Thar desert and hitherto a hypoendemic area for malaria came in the grip of a severe malaria epidemic during 1990. The epidemic occurred as an aftermath of floods, preceded by normal rains during 1988 and 1989 after a prolonged drought phase. The epidemic was spread over the whole district including Barmer town. Annual… (More)

EEcient data motion is critical for high performance computing on distributed memory architectures. The value of some techniques for eecient data motion is illustrated by identifying generic communication primitives. Further, the eeciency of these primitives is demonstrated on three diier-ent applications using the nite element method for unstructured grids… (More)

- S J Rahman, B L Wattal, K K Mathur, G C Joshi, K Kumar
- The Journal of communicable diseases
- 1982

- P Prakash, K K Mathur, S Saxena
- Indian pediatrics
- 1977