Performance Characterization of State-Of-The-Art Deep Learning Workloads on an IBM Minsky Platform

Deep learning algorithms are known to demand significant computing horsepower, in particular when it comes to training these models. The capability of developing new algorithms and improving the existing ones is in part determined by the speed at which these models can be trained and tested. One alternative to attain significant performance gains is through hardware acceleration. However, deep learning has evolved into a large variety of models, including but not limited to fully-connected, convolutional, recurrent and memory networks. Therefore, it appears difficult that a single solution can provide effective acceleration for this entire deep learning ecosystem. This work presents detailed characterization results of a set of archetypal state-of-the-art deep learning workloads on a last-generation IBM POWER8 system with NVIDIA Tesla P100 GPUs and NVLink interconnects. The goal is to identify the performance bottlenecks (i.e. the accelerable portions) to provide a thorough study that can guide the design of prospective acceleration platforms in a more effective manner. In addition, we analyze the role of the GPU (as one particular type of acceleration engine) and its effectiveness as a function of the size of the problem

Ecuación de estado generalizada para redes de Petri no autónomas y con distintos tipos de arcos

Este trabajo propone generalizar la ecuación de estado de las redes de Petri, para representar redes de Petri no autónomas con distintos tipos de brazos y semánticas temporales. Esta ecuación generalizada facilita la implementación por hardware de un IP-Core para la ejecución de la red. La solución expresada por esta ecuación de estado da origen a un algoritmo que preserva el modelo original, facilita su ejecución en paralelo y permite abordar problemas de mayor tamaño y complejidad. Además, se aborda un caso donde se pone de manifiesto las ventajas de incluir eventos, distintos tipos de brazos y semánticas temporales.This work proposes to generalize the state equation of a Petri Net, with the objective of represent different types of arcs and time semantics in non-autonomous Petri nets. This generalized equation facilitates the hardware implementation of an IP-Core to execute the network. The solution that these extended state equation express raises an algorithm that preserves the original model, facilitates parallel execution and allows addressing problems bigger in size and complexity. In addition, exposes a case of application where highlights the advantages of including events, different types of arcs and timed semantics.XI Workshop Arquitectura, Redes y Sistemas Operativos (WARSO).Red de Universidades con Carreras en Informática (RedUNCI

Ecuación de estado generalizada para redes de Petri no autónomas y con distintos tipos de arcos

Este trabajo propone generalizar la ecuación de estado de las redes de Petri, para representar redes de Petri no autónomas con distintos tipos de brazos y semánticas temporales. Esta ecuación generalizada facilita la implementación por hardware de un IP-Core para la ejecución de la red. La solución expresada por esta ecuación de estado da origen a un algoritmo que preserva el modelo original, facilita su ejecución en paralelo y permite abordar problemas de mayor tamaño y complejidad. Además, se aborda un caso donde se pone de manifiesto las ventajas de incluir eventos, distintos tipos de brazos y semánticas temporales.This work proposes to generalize the state equation of a Petri Net, with the objective of represent different types of arcs and time semantics in non-autonomous Petri nets. This generalized equation facilitates the hardware implementation of an IP-Core to execute the network. The solution that these extended state equation express raises an algorithm that preserves the original model, facilitates parallel execution and allows addressing problems bigger in size and complexity. In addition, exposes a case of application where highlights the advantages of including events, different types of arcs and timed semantics.XI Workshop Arquitectura, Redes y Sistemas Operativos (WARSO).Red de Universidades con Carreras en Informática (RedUNCI

Los reanálisis arrojan luz sobre el desastre de los aludes de 1916

Uno de los peores desastres meteorológicos de la historia tuvo lugar en el sureste de los Alpes durante el infame invierno de 1916/17. Los aludes ocurridos después de un episodio de grandes nevadas mataron a miles de soldados y civiles. Las técnicas numéricas actuales abren nuevas posibilidades para estudiar este episodio histórico. La combinación de las mediciones históricas con los reanálisis y la regionalización dinámica (dinamical downscaling) hace posible reconstruir el tiempo atmosférico descendiendo incluso hasta la escala local y, por lo tanto, a la escala captada por documentos históricos de los impactos meteorológicos

Trends of maxillofacial trauma : an update from the prospective register of a multicenter study in emergency services of Chile

Determine the behavior of the maxillofacial trauma of adults treated in 3 tertiary care centers in the central zone of Chile. Descriptive, cross-sectional, multicenter study, based on the prospective records of maxillofacial trauma cases attended between May 2016 and April 2017 by dental and maxillofacial clinical teams of Adult Emergency Units of hospitals Dr. Sótero del Río (metropolitan region), Carlos Van Buren and Dr. Gustavo Fricke (region V). Age, sex, date of occurrence, type of trauma according to ICD-10, etiology, legal medical prognosis and associated injuries were recorded, stratifying by sex and age. Chi square and unpaired Wilcoxon tests were used to compare by groups. 2.485 cases and 3.285 injuries were investigated. The male: female ratio was 1.7: 1 with age under 30 predominant, followed by older adults. Variability was observed in the yearly, weekly and daily presentation. The highest frequencies were in January and September, weekends and at night. The main etiologies were violence (42.3%), falls (13.1%) and road traffic crashes (12.9%) with differences by age and sex (p<0.05). 31,9% of the injuries occurred in hard tissue, being fractures in nasal bones predominant (S02.2). The profile of the maxillofacial trauma in Chile seems to be mixed by age, affecting young people and the elderly. The male sex predominates; the main cause, which varies by age group, is violence. Their surveillance is possible from hospital emergency records

Reanalysis sheds lights on 1916 avalanche disaster

One of the worst meteorological disasters in history took place in the southeastern Alps during the infamous winter of 1916/17. Avalanches following a massive snowfall event killed thousands of soldiers as well as civilians. Today’s numerical techniques open up new possibilities to study this historical event. Combining historical measurements with reanalyses and dynamical downscaling makes it possible to reconstruct weather even down to local scales and thus to the scale captured by historical documents on weather impacts

Methods of inducing conditioned food aversion to Baccharis coridifolia (mio-mio) in cattle

Three experiments were performed to determine the efficacy of various methods of averting naïve cattle to prevent Baccharis coridifolia poisoning: forced oral administration of 0.5g kg-1 body weight of fresh B. coridifolia; forced inhalation of the smoke from burning B. coridifolia and rubbing the plant on the animals' muzzles and mouths; and introducing the animals into paddocks with low invasion by B. coridifolia. Results demonstrated that cattle forced to ingest low doses become strongly averted if introduced into paddocks 23-26 hours after the aversion. In contrast, cattle introduced into the paddocks between 1-10 hours were not fully averted. Inhalation of B. coridifolia smoke, and rubbing the plant on the animals' muzzles and mouths were not efficient to induce an aversion. The introduction of cattle into paddocks with approximately 1% of B. coridifolia was efficient if the animals remained 5 months in the area, but not if they only remained for 60 hours, as cattle required sufficient time to learn to avoid the plant