Improved Multi-GPU parallelization of a Lagrangian Transport Model

This report highlights our work on improving GPU parallelization by supporting compute nodes with multiple GPUs. However, since the default support for multi-GPUs in OpenACC is limited[6], the current implementation allows each MPI process to access only a single GPU. Thus, the only way to take full advantage of multi-GPU nodes in the current version is to launch multiple processes, which increases resource contention. We investigated the benefits of having only one process offload to all available GPU devices.Comment: Technical Repor

Workplace Conflict and Employees’ Job Performance in Agro-Services Corporation, Ogun State, Nigeria

The study determined the effects of workplace conflict on employees’ job performance in Ogun State Agro-service Corporation (OGASC). Multistage sampling technique was used to select 77 respondents. Data were collected through the administration of questionnaires and were analysed using frequency, percentage, mean and t-test. More than half percentage of the respondents (57.1%) experienced low level of workplace conflict. Though, existence of favouratism (áº=1.311) was ranked second as an indication of conflict by the respondents. Furthermore, a fairly high percentage of the respondents (51.9%) had unfavourable perception of the management’s resolution strategies. In addition, the job performance of 68.8% of the respondents was high. Job performance of the respondents was not adversely affected by the workplace conflict they experienced. Therefore, the management of OGASC should ensure improvement in the deployment of the used resolution strategies to drastically reduce conflict for better performance of the employees

Workplace Conflict and Employees’ Job Performance in Agro-Services Corporation, Ogun State, Nigeria

The study determined the effects of workplace conflict on employees’ job performance in Ogun State Agro-service Corporation (OGASC). Multistage sampling technique was used to select 77 respondents. Data were collected through the administration of questionnaires and were analysed using frequency, percentage, mean and t-test. More than half percentage of the respondents (57.1%) experienced low level of workplace conflict. Though, existence of favouratism (áº=1.311) was ranked second as an indication of conflict by the respondents. Furthermore, a fairly high percentage of the respondents (51.9%) had unfavourable perception of the management’s resolution strategies. In addition, the job performance of 68.8% of the respondents was high. Job performance of the respondents was not adversely affected by the workplace conflict they experienced. Therefore, the management of OGASC should ensure improvement in the deployment of the used resolution strategies to drastically reduce conflict for better performance of the employees

Workplace Conflict and Employees’ Job Performance in Agro-Services Corporation, Ogun State, Nigeria

The study determined the effects of workplace conflict on employees’ job performance in Ogun State Agro-service Corporation (OGASC). Multistage sampling technique was used to select 77 respondents. Data were collected through the administration of questionnaires and were analysed using frequency, percentage, mean and t-test. More than half percentage of the respondents (57.1%) experienced low level of workplace conflict. Though, existence of favouratism (áº=1.311) was ranked second as an indication of conflict by the respondents. Furthermore, a fairly high percentage of the respondents (51.9%) had unfavourable perception of the management’s resolution strategies. In addition, the job performance of 68.8% of the respondents was high. Job performance of the respondents was not adversely affected by the workplace conflict they experienced. Therefore, the management of OGASC should ensure improvement in the deployment of the used resolution strategies to drastically reduce conflict for better performance of the employees

Symbiotic Effectiveness of Rhizobia Strains Isolated from Nigerian Savanna

Laboratory and screenhouse experiment were conducted to assess the symbiotic effectiveness (SE) of rhizobia isolated from southern Guinea savanna, northern Guinea savanna and Sudan savanna of Nigeria and response of promiscuous soybean varieties, TGx1448-2E, TGx1835-10E and TGx1955-10E to inoculation with ten indigenous rhizobia isolates. The soybean varieties were grown on sterilized sand at the screenhouse of the Department of Soil Science and Land Management, Federal University of Technology Minna and watered using Sandsman’s nutrient solution. The treatments were un-inoculated control, mineral nitrogen (urea) and ten rhizobia isolates arranged on a Completely Randomized Design (CRD) and replicated three times. The rhizobia isolates were Sg4, Sg6-3, Gw5, Gw3-2, Bg3, Bg1-4, Sk2-3, Am2, Am6-3 and Kr5-5 isolated from Sabon-gida, Gwada, Birnin-gwari, Shika, Amawa and Karaye sites of Nigerian savanna. The results obtained were subjected to Analysis of Variance using statistical analysis system (SAS 2008) computer software. The treatments mean was separated using Least Significant Different (LSD) at 5% probability. Nodulation and biomass yield of the varieties were assessed at six weeks after planting. Nodules were only produced in inoculated plants, SE was calculated. The result obtained showed that nodule dry weight, SE and shoot dry weight were significantly affected by the interaction between inoculation and promiscuous soybean varieties. Generally, inoculated plants gave higher shoot biomass gain than the un-inoculated control but lower than those treated with urea. The difference between those inoculated and those treated with urea was associated to environmental specificities and higher temperature during the period of the experiment. The SE was highest in northern Guinea savanna isolate reaching 67% and lowest in southern Guinea savanna isolate Sg6-3 recorded 53%. The result showed an SE of less than 100% in all the isolates which implies that the indigenous rhizobia isolates were not superior to the mineral nitrogen

Workplace conflict and employees’ job performance in Agro-services Corporation, Ogun State, Nigeria

The study determined the effects of workplace conflict on employees’ job performance in Ogun State Agro-service Corporation (OGASC). Multistage sampling technique was used to select 77 respondents. Data were collected through the administration of questionnaires and were analysed using frequency, percentage, and mean. The presence of functional staff union to minimize conflict (x̅ = 2.99) ranked as the first indication of reduced conflict, followed by existence of favouritism (x̅ = 2.51) which was ranked highest as an indication of conflict escalating factor by the respondents. Job performance of the respondents was not adversely affected by the workplace conflict they experienced. Therefore, the management of OGASC should ensure improvement in the deployment of the used resolution strategies to drastically reduce conflict for better performance of the employees