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000811072 0247_ $$2doi$$a10.1145/55364.55390
000811072 037__ $$aFZJ-2016-03595
000811072 1001_ $$0P:(DE-HGF)0$$aNagel, W. E.$$b0
000811072 1112_ $$a2nd International Conference on Supercomputing$$cSt. Malo$$d1988-07-04 - 1988-07-08$$gICS'88$$wFrance
000811072 245__ $$aThree-dimensional numerical simulations of the czochralski bulk flow on a CRAY X-MP multiprocessor architecture
000811072 260__ $$aNew York, New York, USA$$bACM Press$$c1988
000811072 29510 $$aProceedings of the 2nd international conference on Supercomputing  - ICS '88. - ISBN 0897912721
000811072 300__ $$a266-272
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000811072 3367_ $$0PUB:(DE-HGF)8$$2PUB:(DE-HGF)$$aContribution to a conference proceedings$$bcontrib$$mcontrib$$s1467631661_2694
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000811072 520__ $$aToday, numerical simulation is used more and more to get detailed information about crystal growth processes. In the Czochralski crystal growth from electrically conductive melts, the application of an external magnetic field has become a very useful technique for improving crystal quality. The integration of the magnetic field into the simulation program leads to a system of coupled partial differential equations, i.e. incompressible Navier-Stokes equations and convective heat equations in combination with an external magnetic field, which have to be solved. Because of the regular access to data this problem is suitable for vector computers. The CRAY X-MP provides vectorization and multiprocessing capabilities. With multitasking it is possible to run different parts of one program in parallel. Both multitasking concepts, macrotasking and microtasking, were examined to evaluate their potential to speed-up the Czochralski crystal growth simulation program implemented on a CRAY X-MP. We will give a survey of the application, and will describe the concepts of macrotasking and microtasking on the CRAY X-MP architecture as well as the integration of these concepts into the simulation program. Timing results provide information about the user benefit obtained by using these techniques.
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000811072 7001_ $$0P:(DE-Juel1)131037$$aWingerath, K.$$b1
000811072 773__ $$a10.1145/55364.55390
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000811072 9201_ $$0I:(DE-Juel1)VDB62$$kZAM$$lZentralinstitut für Angewandte Mathematik$$x0
000811072 9201_ $$0I:(DE-Juel1)JSC-20090406$$kJSC$$lJülich Supercomputing Center$$x1
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