NDLI: Bothnia:a dual-personality extension to the Intel integrated graphics driver

Content Provider	ACM Digital Library
Author	Wang, Perry H. Chinya, Gautham N. Collins, Jamison D. Jiang, Hong Piazza, Thomas A. Lueh, Guei-Yuan Wang, Hong
Abstract	In this paper, we introduce Bothnia, an extension to the Intel production graphics driver to support a shared virtual memory heterogeneous multithreading programming model. With Bothnia, the Intel graphics device driver can support both the traditional 3D graphics rendering software stack and a new class of heterogeneous multithreaded applications, which can use both IA (Intel Architecture) CPU cores and Intel integrated Graphics and Media Accelerator (GMA) cores in the same virtual address space. We describe the necessary architectural supports in both IA CPU and the GMA cores and present a reference Bothnia implementation. For a set of GPU accelerated media applications on a PC platform with Intel Core 2 Duo CPU and the Intel integrated GMA X3000 running under the Windows XP operating system, Bothnia achieves an average speedup of 3.6x compared to using the GPU as a device, primarily due to Bothnia's support for creation of shared virtual address space between heterogeneous threads of the same application spread on both IA CPU and GMA cores.
Starting Page	11
Ending Page	20
Page Count	10
File Format	PDF
ISSN	01635980
DOI	10.1145/1945023.1945027
Journal	ACM SIGOPS Operating Systems Review (OPSR)
Volume Number	45
Issue Number	1
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	1975-04-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Heterogeneous multicore systems Media Gpgpu
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Hardware and Architecture Information Systems

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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