51 research outputs found

    The maximal utilization of processor co-allocation in multicluster systems

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    In systems consisting of multiple clusters of processors which employ space sharing for scheduling jobs, such as our distributed ASCI supercomputer (DAS), co-allocation, i.e., the simultaneous allocation of processors to single jobs in multiple clusters, may be required. In studies of scheduling in single clusters it has been shown that the achievable (maximal) utilization may be much less than 100%, a problem that may be aggravated in multicluster systems. In this paper we study the maximal utilization when co-allocating jobs in multicluster systems, both with analytic means (we derive exact and approximate formulas when the service-time distribution is exponential), and with simulations with synthetic workloads and with workloads derived from the logs of actual systems

    The use of herbal remedies in urban and rural areas of the Setúbal Peninsula (Portugal): A study among elders

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    The Setúbal Peninsula is a highly diverse area where some large-medium and small cities are concentrated and where well preserved areas integrating a natural park or reserved and protected zones can also be found. The main goals of this study were the characterization of the herbal remedies used by different populations, namely that of urban and rural areas, to compare and understand these practices, namely how they were acquired and transmitted, and to evaluate the influence of the involving flora and plant availability on its persistence. Data were obtained through semi-structured interviews to 121 persons, mainly elders. Information concerning plant’s common name, therapeutic utility, form of acquisition, harvesting procedures, parts used, way of utilization, conservation and administration, precautions or side-effects if any, evaluation of treatments efficiency, source of knowledge and other uses of the plants were recorded. Multivariate analysis of correspondences was used to characterize plants by their uses and informants by age, sex, birth-place, residence, education level, professional activity, form of plant acquisition, usage aim and regularity, and by the plants they use. Discriminant analysis was used to assess the influence of urban and rural (mountain or coastal) residence area on plants used by the informants. 186 different medicinal uses were indicated for the 253 taxa tentatively catalogued. Although many plants had various therapeutic applications, they were frequently used in physiologically related problems. Informants living in rural areas had different characteristics of those living in urban areas, their residence areas influencing the plants used

    Plantas medicinais da Península de Setúbal. Contribuição para o conhecimento da sua relevância Etnobotânica

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    A Península de Setúbal engloba ambientes muito distintos, na medida em que, por um lado, alberga cidades de grande/média e pequena dimensão, intimamente relacionadas com a capital, e por outro, áreas bem preservadas que integram parques naturais ou reservas/zonas protegidas. Assim sendo, os principais objectivos deste estudo prenderam-se com: 1) a caracterização dos remédios vegetais usados por populações distintas (as de áreas urbanas e as de áreas rurais); 2) a comparação e compreensão destas práticas (modo de aquisição e transmissão) e 3) a avaliação da influência da flora envolvente e da disponibilidade das plantas na sua persistência nestas populações. Os dados foram obtidos através de entrevistas semi-estruturadas a 121 pessoas, maioritariamente idosos, e permitiram recolher informações relativas ao nome vernáculo das plantas, à sua utilização terapêutica, ao seu modo de obtenção, aos procedimentos de colheita, à parte utilizada, ao seu modo de utilização, conservação e administração, a precauções/contraindicações do tratamento e ao modo de avaliação da sua eficácia, à fonte deste conhecimento e a outras utilizações das plantas. Foram referidos 186 usos medicinais distintos para os 253 taxa tentativamente catalogados, correspondendo a [Lavatera cretica L., Malva spp. (M. nicaeensis All.; M. sylvestris L.; M. tournefortiana L.); Pelargonium graveolens L' Her.] (“malvas”) o maior número de usos (31), enquanto que o taxon mais citado foi Aloysia triphylla (L'Hérit.) Britt. (“doce-lima”) (60 entrevistas). O grupo terapêutico com maior número de usos atribuído foi “Sistema digestivo” e o uso mais citado foi “Estômago” (45 taxa). Para averiguar de que modo as plantas eram caracterizadas pelos usos e os informantes pelas características identitárias (idade, sexo, local de nascimento, local de residência, escolaridade e actividade profissional) e plantas usadas (espécies, modo de aquisição, objectivo e regularidade do uso), recorreu-se à Análise das Correspondências seguida de Classificação Automática. Verificou-se que apesar de muitas das plantas terem várias aplicações terapêuticas, eram frequentemente utilizadas em afecções fisiologicamente relacionáveis. Constatou-se também que os informantes residentes em áreas mais urbanas apresentavam características distintas daqueles que residiam em áreas mais rurais, sendo que a sua área de residência tinha influência nas plantas que usavam. Para muitos dos parâmetros analisados a percentagem de esquecimento/desconhecimento foi importante, revelando que muitos dos informantes já não têm bem presentes os conhecimentos da medicina tradicional, o que confere urgência a uma recolha mais exaustiva destes conhecimentos, antes que desapareçam por completo

    Performance Analysis of Processor Co-Allocation in Multicluster Systems

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    Electrical Engineering, Mathematics and Computer Scienc

    Analisis Dimensi Penilaian Prestasi Kerja Karyawan Bank Syariah Mandiri di Wilayah Jawa Timur

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    To seek some appraisal factors which are relevant and representative with employee’s behavior dimension which are applied so far is the purpose of this research. A systematic review of an individual employee’s performance on the job which is used to evaluate the effectiveness of his or her work has 7 factors performance appraisal, they are (1) daily transaction, (2) reliable and communication, (#) quality of work, (4) initiative and cooperation, (5) work culture, (6) self potention and (7) problem solving. There are three steps in appraising someone’s achievement joint his work in company. First, identification. This step in appraising toward someone that focus on some characteristic in him when he does his job in the company. Second, measurement. This step someone behavior described as specific occasion as guide in appraising. Third, management. In this step, appraisal focus on the work result that of individual work. In another word how the company purpose reach. From those steps, this research focus on measurement step that use appraisal model based on behavior or BARS method. From the result of factors analysis test, there are 7 main factors as variables of performance appraisal in Syariah Mandiri Bank East Java, they are: reliable and communication,quality of work, initiative and cooperation, culture of work, self potention, and problem solving. The value of Kaiser-Meyer-Olkin Measure of Sampling Adequacy 0.615 and value of Bartlett’ Test of Sphericity 2436.410 in significance 0.000. Based on these, the usage of factor anaylis can be responsibility or responded in research data analysis. The conclusion of the study is that some appraisal factors which are relevant and representative with empolyees’ behavior dimension which are applied can be used to evaluate the effectiveness of his or her work

    Priorities among multiple queues for processor co-allocation in multicluster systems

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    In systems consisting of multiple clusters of processors which employ space sharing for scheduling jobs, such as our Distributed ASCI Supercomputer (DAS), co-allocation, i.e., the simultaneous allocation of processors to single jobs in multiple clusters, may be required. In order to handle both single-cluster (local) jobs and multi-cluster (global) jobs, such systems may have only local schedulers (which then need to be aware of the whole system), or only a single global scheduler or both, and each scheduler has its own queue. We assess with simulations the response times of both local and global jobs in multicluster systems for different configurations of queues, for different priority orders in which the associated schedulers are allowed to schedule jobs, and for different job-stream compositions

    Trace-based simulations of processor co-allocation policies in multiclusters

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    In systems consisting of multiple clusters of processors which employ space sharing for scheduling jobs, such as our Distributed ASCI (Advanced School for Computing Imaging) Supercomputer (DAS), co-allocation, i.e., the simultaneous allocation of processors to single jobs in multiple clusters, may be required. In this paper we study the performance of several scheduling policies for co-allocating unordered requests in multiclusters with a workload derived from the DAS. We find that beside the policy, limiting the total job size significantly improves the performance, and that for a slowdown of jobs due to global communication bounded by 1.25, co-allocation is a viable choice

    Priorities among multiple queues for processor co-allocation in multicluster systems

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    In systems consisting of multiple clusters of processors which employ space sharing for scheduling jobs, such as our Distributed ASCI Supercomputer (DAS), co-allocation, i.e., the simultaneous allocation of processors to single jobs in multiple clusters, may be required. In order to handle both single-cluster (local) jobs and multi-cluster (global) jobs, such systems may have only local schedulers (which then need to be aware of the whole system), or only a single global scheduler or both, and each scheduler has its own queue. We assess with simulations the response times of both local and global jobs in multicluster systems for different configurations of queues, for different priority orders in which the associated schedulers are allowed to schedule jobs, and for different job-stream compositions

    Slips of the tongue in the London-Lund corpus of spontaneous conversation

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    Contains fulltext : 6017.pdf (publisher's version ) (Open Access)This paper presents a list of slips of the tongue which occur in a corpus of English conversation transcribed from tape recordings. The kinds of error included in the list are briefly discussed, as are the criteria for detecting errors. The work forms a basis for an estimate of the frequency of such errors in ordinary speech
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