1,530 research outputs found

    Priority-enabled Scheduling for Resizable Parallel Applications

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    In this paper, we illustrate the impact of dynamic resizability on parallel scheduling. Our ReSHAPE framework includes an application scheduler that supports dynamic resizing of parallel applications. We propose and evaluate new scheduling policies made possible by our ReSHAPE framework. The framework also provides a platform to experiment with more interesting and sophisticated scheduling policies and scenarios for resizable parallel applications. The proposed policies support scheduling of parallel applications with and without user assigned priorities. Experimental results show that these scheduling policies significantly improve individual application turn around time as well as overall cluster utilization

    Highest weight Harish-Chandra supermodules and their geometric realizations

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    In this paper we discuss the highest weight kr\frak k_r-finite representations of the pair (gr,kr)(\frak g_r,\frak k_r) consisting of gr\frak g_r, a real form of a complex basic Lie superalgebra of classical type g\frak g (gA(n,n){\frak g}\neq A(n,n)), and the maximal compact subalgebra kr\frak k_r of gr,0\frak g_{r,0}, together with their geometric global realizations. These representations occur, as in the ordinary setting, in the superspaces of sections of holomorphic super vector bundles on the associated Hermitian superspaces Gr/KrG_r/K_r.Comment: This article contains of part of the material originally posted as arXiv:1503.03828 and arXiv:1511.01420. The rest of the material was posted as arXiv:1801.07181 and will also appear in an enlarged version as subsequent postin

    On the deformation quantization of affine algebraic varieties

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    We compute an explicit algebraic deformation quantization for an affine Poisson variety described by an ideal in a polynomial ring, and inheriting its Poisson structure from the ambient space.Comment: AMS-LaTeX, 20 page

    Tsirelson's bound and supersymmetric entangled states

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    A superqubit, belonging to a (21)(2|1)-dimensional super-Hilbert space, constitutes the minimal supersymmetric extension of the conventional qubit. In order to see whether superqubits are more nonlocal than ordinary qubits, we construct a class of two-superqubit entangled states as a nonlocal resource in the CHSH game. Since super Hilbert space amplitudes are Grassmann numbers, the result depends on how we extract real probabilities and we examine three choices of map: (1) DeWitt (2) Trigonometric (3) Modified Rogers. In cases (1) and (2) the winning probability reaches the Tsirelson bound pwin=cos2π/80.8536p_{win}=\cos^2{\pi/8}\simeq0.8536 of standard quantum mechanics. Case (3) crosses Tsirelson's bound with pwin0.9265p_{win}\simeq0.9265. Although all states used in the game involve probabilities lying between 0 and 1, case (3) permits other changes of basis inducing negative transition probabilities.Comment: Updated to match published version. Minor modifications. References adde

    SUSY structures, representations and Peter-Weyl theorem for S11S^{1|1}

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    The real compact supergroup S11S^{1|1} is analized from different perspectives and its representation theory is studied. We prove it is the only (up to isomorphism) supergroup, which is a real form of (C11)×({\mathbf C}^{1|1})^\times with reduced Lie group S1S^1, and a link with SUSY structures on C11{\mathbf C}^{1|1} is established. We describe a large family of complex semisimple representations of S11S^{1|1} and we show that any S11S^{1|1}-representation whose weights are all nonzero is a direct sum of members of our family. We also compute the matrix elements of the members of this family and we give a proof of the Peter-Weyl theorem for S11S^{1|1}

    Kinetics & Mechanism of Oxidation of Nitrilotriacetic Acid with Aquo Cobaltic Ions

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    1054-106

    Cech and de Rham Cohomology of Integral Forms

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    We present a study on the integral forms and their Cech/de Rham cohomology. We analyze the problem from a general perspective of sheaf theory and we explore examples in superprojective manifolds. Integral forms are fundamental in the theory of integration in supermanifolds. One can define the integral forms introducing a new sheaf containing, among other objects, the new basic forms delta(dtheta) where the symbol delta has the usual formal properties of Dirac's delta distribution and acts on functions and forms as a Dirac measure. They satisfy in addition some new relations on the sheaf. It turns out that the enlarged sheaf of integral and "ordinary" superforms contains also forms of "negative degree" and, moreover, due to the additional relations introduced, its cohomology is, in a non trivial way, different from the usual superform cohomology.Comment: 20 pages, LaTeX, we expanded the introduction, we add a complete analysis of the cohomology and we derive a new duality between cohomology group
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