Extending OmpSs for OpenCL kernel co-execution in heterogeneous systems

© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes,creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.Heterogeneous systems have a very high potential performance but present difficulties in their programming. OmpSs is a well known framework for task based parallel applications, which is an interesting tool to simplify the programming of these systems. However, it does not support the co-execution of a single OpenCL kernel instance on several compute devices. To overcome this limitation, this paper presents an extension of the OmpSs framework that solves two main objectives: the automatic division of datasets among several devices and the management of their memory address spaces. To adapt to different kinds of applications, the data division can be performed by the novel HGuided load balancing algorithm or by the well known Static and Dynamic. All this is accomplished with negligible impact on the programming. Experimental results reveal that there is always one load balancing algorithm that improves the performance and energy consumption of the system.This work has been supported by the University of Cantabria with grant CVE-2014-18166, the Generalitat de Catalunya under grant 2014-SGR-1051, the Spanish Ministry of Economy, Industry and Competitiveness under contracts TIN2016- 76635-C2-2-R (AEI/FEDER, UE) and TIN2015-65316-P. The Spanish Government through the Programa Severo Ochoa (SEV-2015-0493). The European Research Council under grant agreement No 321253 European Community’s Seventh Framework Programme [FP7/2007-2013] and Horizon 2020 under the Mont-Blanc Projects, grant agreement n 288777, 610402 and 671697 and the European HiPEAC Network.Peer ReviewedPostprint (published version

Eudaimonic Well-being in adolescents: The role of trait emotional intelligence and personality

Eudaimonic well-being is related to activities that lead to self-realization and personal development, goals and growth. Emotional intelligence and personality traits play a role in the perception of emotions, self-esteem and motivation and therefore in well-being. Although previous studies have analyzed the relationship among personality, emotional intelligence and well-being, the relationship between all three constructs and the predictive value of personality and emotional intelligence in the study of eudaimonic well-being in adolescents remains to be analyzed. This study evaluates this relationship and the predictive role of personality and emotional intelligence in eudaimonic well-being in 1031 Spanish secondary school students aged 12 to 17 (49.37% male, average age = 14.91 years). A quantitative field survey was conducted which included the distribution of the eudaimonic well-being questionnaire, the emotional intelligence questionnaire and the personality questionnaire. Descriptive statistics and correlations among eudaimonic well-being, emotional intelligence and personality well-being were calculated using SPSS Statistical Package software. Stepwise multiple regression was used to estimate the predictive value of personality and emotional intelligence in the study of eudaimonic well-being. Finally, a structural equations model was designed with AMOS software. The results show that these constructs are related and that personality and emotional intelligence are important variables for eudaimonic well-being. In addition, activity and anxiety factors (related to personality) and emotionality and well-being factors (related to trait emotional intelligence) have been shown to have predictive value in the study of eudaimonic well-being in adolescents. These results underline the value of personality and emotional intelligence in the study of eudaimonic well-being and present new research perspectives

Semantics, pragmatics, and formal thought disorders in people with schizophrenia

Background:The aim of this study was to analyze how formal thought disorders (FTD) affect semantics and pragmatics in patients with schizophrenia. Methods:The sample comprised subjects with schizophrenia (n = 102) who met the criteria for the disorder according to the Diagnostic and Statistical Manual of Mental Disorders, 4th Edition Text Revision. In the research process, the following scales were used: Positive and Negative Syndrome Scale (PANSS) for psychopathology measurements; the Scale for the Assessment of Thought, Language, and Communication (TLC) for FTD, Word Accentuation Test (WAT), System for the Behavioral Evaluation of Social Skills (SECHS), the pragmatics section of the Objective Criteria Language Battery (BLOC-SR) and the verbal sections of the Wechsler Adults Intelligence Scale (WAIS) III, for assessment of semantics and pragmatics. Results: The results in the semantics and pragmatics sections were inferior to the average values obtained in the general population. Our data demonstrated that the more serious the FTD, the worse the performances in the Verbal-WAIS tests (particularly in its vocabulary, similarities, and comprehension sections), SECHS, and BLOC-SR, indicating that FTD affects semantics and pragmatics, although the results of the WAT indicated good premorbid language skills. Conclusion: The principal conclusion we can draw from this study is the evidence that in schizophrenia the superior level of language structure seems to be compromised, and that this level is related to semantics and pragmatics; when there is an alteration in this level, symptoms of FTD appear, with a wide-ranging relationship between both language and FTD. The second conclusion is that the subject's language is affected by the disorder and rules out the possibility of a previous verbal impairment

The impact of theatrical experiences on young adults in Spain

This study examines how young adults experience theatre and how this activity impacts their personal development. A total of 305 subjects, between 14 and 29 years old, completed the 'Theatre and me' (T&Y) battery of questions. Correlation and variance analysis were conducted considering age and gender. Older subjects reported that participating in drama activities has a greater impact on their lives, helps them to have a greater proclivity to take risks and to be more open-minded. With respect to gender, girls score higher than boys in 'Tolerance to RiskTaking and Commitment', 'Identity and Consciousness', Expression of Feeling' and 'Escape

Obstructive Jaundice Due to Hepatocarcinoma With Intraductal Growth. Report of a Successful Resection

We present a patient with hepatocellular carcinoma causing obstructive jaundice due to intraductal growth, diagnosed intraoperatively by cholangiography and histological examination, and radically treated by left lobectomy, extrahepatic biliary tract resection and Roux-en-Y hepaticojejunostomy. Survival after operation was 13 months. Other similar cases reported in the literature are reviewed

Megestrol Acetate as a Treatment for Anorexia in Hemodialysis Patients

Background: The aim of this study was to evaluate the effectiveness of megestrol acetate as a treatment for anorexia in hemodialysis patients.Materials and Methods: From 1st January 2008 to 31st December 2010, 29 patients in our Hemodialysis Unit were treated with megestrol acetate (initial dose: 160 mg / day) for anorexia associated with a decrease in dry body weight. Sixteen patients had a protein-energy wasting syndrome.Results: Appetite improved in 25 patients, but the initial dose of megestrol acetate had to be increased in 8 patients. At three months, there was an increase in dry body weight (63.4 vs 61.9 kg, p=0.002), serum albumin level (3.98 vs 3.77 g/dl, p<0.001), serum creatinine level (10.5 vs 9.6 mg/dl, p=0.016) and protein catabolic rate (1.21 vs 0.98 g / kg / day, p < 0.001). The response was independent of the cause of anorexia. A bioelectrical impedance analysis, carried out in 9 patients, showed that treatment with megestrol acetate increased the body cell mass and changed the distribution of body water by increasing intracellular water. The megestrol acetate treatment was well-tolerated and no patients left the study due to side effects or adverse reactions.Conclusions: Megestrol acetate improves appetite and nutritional parameters in anorexic patients treated with maintenance hemodialysis

Molecular Competition in G1 Controls When Cells Simultaneously Commit to Terminally Differentiate and Exit the Cell Cycle

Terminal differentiation is essential for the development and maintenance of tissues in all multi-cellular organisms and is associated with permanent exit from the cell cycle. Failure to permanently exit the cell cycle can result in cancer and disease. However, the molecular mechanisms and timing that coordinate differentiation commitment and cell cycle exit are not yet understood. Using live, single-cell imaging of cell cycle progression and differentiation commitment during adipogenesis, we show that a rapid switch mechanism engages exclusively in G1 to trigger differentiation commitment simultaneously with permanent exit from the cell cycle. We identify a molecular competition in G1 between when the differentiation switch is triggered and when the proliferative window closes that allows mitogen and differentiation stimuli to control the balance between terminally differentiating cells produced and progenitor cells kept in reserve, a parameter of critical importance for enabling proper development of tissue domains and organs. Zhao et al. show that in terminally differentiating cells, a rapid switch mechanism engages exclusively during a G1 period to trigger simultaneous differentiation commitment and permanent cell cycle exit. A molecular competition in each G1 period allows cells to control the balance the terminally differentiating cells produced and progenitor cells kept in reserve