Table 3

Cost comparison of Amazon's cloud computing instance types.

Instance Type

# Instances

Time * (hours)

Cost ($)


Standard Small (single core)

50

1088

6256 (0.115 per hour per instance)


Standard Large (dual core)

50

544

12512 (0.46 per hour per instance)


Standard Extra Large (4-cores)

50

272

12512 (0.92 per hour per instance)


High-CPU Medium (dual core)

50

544

6256 (0.23 per hour per instance)


High-CPU Extra Large (8 core)

50

136

6256 (0.92 per hour per instance)


Amazon's Elastic Compute Cloud (EC2) can be accessed via a number of differet instance types. For the purposes of our comparative genomics problem, we elected to utilize the extra-large high-CPU instance. Note that the total cost for a small instance is equal to the total of the extra large, despite the large difference in computing time.

Wall et al. BMC Bioinformatics 2010 11:259   doi:10.1186/1471-2105-11-259

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