Brian J. Miller

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We describe Miranda, a massively parallel spectral/compact solver for variable-density incompressible flow, including viscosity and species diffusivity effects. Mi-randa utilizes FFTs and band-diagonal matrix solvers to compute spatial derivatives to at least 10th-order accuracy. We have successfully ported this communication-intensive application to(More)
BlueGene/L (BG/L), developed through a partnership between IBM and Lawrence Livermore National Laboratory (LLNL), is currently the world's largest system both in terms of scale, with 131,072 processors, and absolute performance , with a peak rate of 367 Tflop/s. BG/L has led the last four Top500 lists with a Linpack rate of 280.6 Tflop/s for the full(More)
"All-causes discontinuation" refers to discontinuation of treatment for any reason, and medication adherence is an important component of this measure. Similar to our previous results, we found that almost 30% of patients with first-episode psychosis (FEP) discontinue medication in the first 9 months of treatment, a finding that has important implications(More)
This overview highlights the current hot topics in schizophrenia research. One major drawback to progress is the ability to define and focus on the right patient group. Schizophrenia is a biased and heterogeneous (group of) condition(s), the boundaries of which remain uncertain. An initiative that will focus attention away from (mere) symptoms of the(More)
We propose a hybrid mesh deformation algorithm which uses the direction of the boundary deformation to determine the positions of the interior mesh vertices in the deformed mesh. Our goal is to produce meshes on deformed domains which maintain mesh 'similar' element shape and possess no inverted elements. The hybrid mesh deformation algorithm consists of(More)
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