[Bioperl-l] Problem with clustering analysis of a large dataset ( 18000 rows and 17 columns)

[Gong Wuming]

Hi list:
I use hierarchical clustering algorithm (average linkage algorithm) to do a 

clustering analysis of a large dataset (around 18000 rows and 17 columns) 
by 
perl Algorithm::Cluster module. My computer is Pentium 4 2.4G with 512M 
memory. However, the computation lasted about 36 hours and still do not 
complete yet. After the burst usage of CPU and memory at the begining of 
the 
analysis (less than half an hour), the CPU usage keeps at 0.1% and the 
memory 
usage around 80%. (The analysis could complete in a few minutes while the 
dataset is 10000 X 20). 
Is this case normal and how long could the computation be accomplished?

Sincerely

Wuming Gong
College of Life Science, Wuhan University, China

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