The development of VisLT visualization service in Openstack cloud infrastructure

Pacevič, Ruslan; Kačeniauskas, Arnas

doi:10.1016/j.advengsoft.2016.06.012

Cited by 14 publications

(7 citation statements)

References 20 publications

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“…The communication-and computation-intensive DEM SaaS is used to solve applications of granular materials and particle technology, such as hopper discharge, avalanche flow, and powder compaction. Computational results are visualized using the cloud visualization service VisLT [51]. The visualization SaaS is developed using the VTK platform.…”

Section: Openstack Cloud Infrastructure and Servicesmentioning

confidence: 99%

Performance of Communication- and Computation-Intensive SaaS on the OpenStack Cloud

2021

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The pervasive use of cloud computing has led to many concerns, such as performance challenges in communication- and computation-intensive services on virtual cloud resources. Most evaluations of the infrastructural overhead are based on standard benchmarks. Therefore, the impact of communication issues and infrastructure services on the performance of parallel MPI-based computations remains unclear. This paper presents the performance analysis of communication- and computation-intensive software based on the discrete element method, which is deployed as a service (SaaS) on the OpenStack cloud. The performance measured on KVM-based virtual machines and Docker containers of the OpenStack cloud is compared with that obtained by using native hardware. The improved mapping of computations to multicore resources reduced the internode MPI communication by 34.4% and increased the parallel efficiency from 0.67 to 0.78, which shows the importance of communication issues. Increasing the number of parallel processes, the overhead of the cloud infrastructure increased to 13.7% and 11.2% of the software execution time on native hardware in the case of the Docker containers and KVM-based virtual machines of the OpenStack cloud, respectively. The observed overhead was mainly caused by OpenStack service processes that increased the load imbalance of parallel MPI-based SaaS.

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Section: Openstack Cloud Infrastructure and Servicesmentioning

confidence: 99%

Performance of Communication- and Computation-Intensive SaaS on the OpenStack Cloud

2021

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“…The velocity and pressure fields in the computational domain can be strongly affected by the outlet boundary conditions [5], therefore, various techniques including the proposed boundary condition were employed to handle the backflows occurring in the aortic valve flows. Time-consuming computations were performed by using the developed cloud software services [25,26] based on ANSYS Fluent [22]. Figure 4 shows the distribution of the velocity on the outlet in the case of various boundary conditions.…”

Section: Resultsmentioning

confidence: 99%

Investigation of the backflows and outlet boundary conditions for computations of the patient-specific aortic valve flows

Staškūnienė¹,

Kačeniauskas²,

Maknickas³

et al. 2018

THC

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“…Dream Host offers different set of identities required by companies for each service provider, the nature of cloud computing raises to establish relationship [52]as a federation in cloud providers. The distribution of private data should be managed, rather than user agreement.…”

Section: Dream Hostmentioning

confidence: 99%

Security strategies for cloud identity management - a study

Anilkumar

Sumathy

2018

IJET

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Emphasis on security for providing Access Control in Cloud computing environment plays a significant role. Cloud computing provides number of benefits such as resource sharing, low speculation and large storage space. Huge amount of information stored in cloud can be accessed from anywhere, anytime on pay-per use basis. Resources in cloud should be accessed only by the authorized clients. Access Control in cloud computing has become a critical issue due to increasing number of users experiencing dynamic changes. Authentication, authorization and approval of the access ensuring liability of entities from login credentials including passwords and biometric scan is essential. Also, the federated authentication management is secured. Current approaches require large-scale distributed access control in cloud environment. Data security and access control are the drawbacks in existing access control schemes. Due to the drawbacks in existing access control schemes such as privacy of information when susceptible information is stored in intermediary service provider a federated identity access management is essential. Access control applications majorly concentrate on Healthcare, Government Organizations, Commercial, Critical Infrastructure and Financial Institutions. This review illustrates a detailed study of access control models in cloud computing and various cloud identity management schemes.

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The development of VisLT visualization service in Openstack cloud infrastructure

Cited by 14 publications

References 20 publications

Performance of Communication- and Computation-Intensive SaaS on the OpenStack Cloud

Performance of Communication- and Computation-Intensive SaaS on the OpenStack Cloud

Investigation of the backflows and outlet boundary conditions for computations of the patient-specific aortic valve flows

Security strategies for cloud identity management - a study

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