Donghyeon Cha

Mr. Donghyeon Cha

orcid

Research Focus & Metrics

Academic Career Length

2Years (2025-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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14 March 2025 in Applied Sciences
Verified
Journal Article
Open access
PDF file
SSSANGHO SONG
SANGHO SONG
JCJihyeon Choi
Jihyeon Choi
DCDonghyeon Cha
Donghyeon Cha
HLHyeonbyeong Lee
Hyeonbyeong Lee
DCdojin choi
dojin choi
JYJaesoo Yoo
Jaesoo Yoo
Recently, there has been active research on utilizing GPUs for the efficient processing of large-scale dynamic graphs. However, challenges arise due to the repeated transmission and processing of identical data during dynamic graph operations. This paper proposes an efficient processing scheme for large-scale dynamic graphs in GPU environments with limited memory, leveraging dynamic scheduling and operation reduction. The proposed scheme partitions the dynamic graph and schedules each partition based on active and tentative active vertices, optimizing GPU utilization. Additionally, snapshots are employed to capture graph changes, enabling the detection of redundant edge and vertex modifications. This reduces unnecessary computations, thereby minimizing GPU workloads and data transmission costs. The scheme significantly enhances performance by eliminating redundant operations on the same edges or vertices. Performance evaluations demonstrate an average improvement of 280% over existing static graph processing techniques and 108% over existing dynamic graph processing schemes.

11 February 2025 in Preprints.org
Verified
Preprint
Open access
PDF file
SSSANGHO SONG
SANGHO SONG
JCJihyeon Choi
Jihyeon Choi
DCDonghyeon Cha
Donghyeon Cha
HLHyeonbyeong Lee
Hyeonbyeong Lee
DCdojin choi
dojin choi
JYJaesoo Yoo
Jaesoo Yoo
Recently, there has been active research on utilizing GPUs for the efficient processing of large-scale dynamic graphs. However, challenges arise due to the repeated transmission and processing of identical data during dynamic graph operations. This paper proposes an efficient processing scheme for large-scale dynamic graphs in GPU environments with limited memory, leveraging dynamic scheduling and operation reduction. The proposed scheme partitions the dynamic graph and schedules each partition based on active and tentative active vertices, optimizing GPU utilization. Additionally, snapshots are employed to capture graph changes, enabling the detection of redundant edge and vertex modifications. This reduces unnecessary computations, thereby minimizing GPU workloads and data transmission costs. The scheme significantly enhances performance by eliminating redundant operations on the same edges or vertices. Performance evaluations demonstrate an average improvement of 280% over existing static graph processing techniques and 108% over existing dynamic graph processing schemes.