Shared-memory performance profiling

1997 ◽  
Vol 32 (7) ◽  
pp. 240-251 ◽  
Author(s):  
Zhichen Xu ◽  
James R. Larus ◽  
Barton P. Miller
Keyword(s):  
Shared Memory ◽  
Memory Performance ◽  
Performance Profiling

scholarly journals Experiences of the GPU Thread Configuration and Shared Memory

2018 ◽  
Vol 3 (7) ◽  
pp. 12
Author(s):  
DaeHwan Kim
Keyword(s):  
Parallel Computation ◽  
Shared Memory ◽  
Memory Performance ◽  
General Purpose ◽  
Global Memory ◽  
Experimental Result ◽  
Gpu Programming ◽  
Memory Accesses

Nowadays, GPU processors are widely used for general-purpose parallel computation applications. In the GPU programming, thread and block configuration is one of the most important decisions to be made, which increases parallelism and hides instruction latency. However, in many cases, it is often difficult to have sufficient parallelism to hide all the latencies, where the high latencies are often caused by the global memory accesses. In order to reduce the number of  those accesses, the shared memory is instead used which is  much faster than the global memory being located on a chip. The performance of the proposed thread configuration is evaluated on the GPU 960 processor. The experimental result shows that the best configuration improves the performance by 7.3 times compared to the worst configuration in the experiment. The experiences are also discussed for the shared memory performance when compared to that of the global memory.

Impact of Comorbid Depression on Serial Position Effects in Alzheimer’s Disease

GeroPsych ◽  
2014 ◽  
Vol 27 (4) ◽  
pp. 161-169 ◽  
Author(s):  
Nienke A. Hofrichter ◽  
Sandra Dick ◽  
Thomas G. Riemer ◽  
Carsten Schleussner ◽  
Monique Goerke ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Serial Position ◽  
Episodic Memory ◽  
Memory Performance ◽  
Memory Function ◽  
Word List ◽  
Position Effects ◽  
Serial Position Effects ◽  
List Memory

Hippocampal dysfunction and deficits in episodic memory have been reported for both Alzheimer’s disease (AD) and major depressive disorder (MDD). Primacy performance has been associated with hippocampus-dependent episodic memory, while recency may reflect working memory performance. In this study, serial position profiles were examined in a total of 73 patients with MDD, AD, both AD and MDD, and healthy controls (HC) by means of CERAD-NP word list memory. Primacy performance was most impaired in AD with comorbid MDD, followed by AD, MDD, and HC. Recency performance, on the other hand, was comparable across groups. These findings indicate that primacy in AD is impaired in the presence of comorbid MDD, suggesting additive performance decrements in this specific episodic memory function.

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