How To Compare Amazon Ec2 To A Supercomputer For Scientific Applications
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- Adam Anthony
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1 Amazon Cloud Performance Compared David Adams
2 Amazon EC2 performance comparison How does EC2 compare to traditional supercomputer for scientific applications? "Performance Analysis of High Performance Computing Applications on the Amazon Web Services Cloud", 2010
3 HPC Benchmarking NERSC - benchmark framework MPI Head node, worker nodes File server implemented with EBS IPM - MPI communication monitor Compared: Amazon EC2 - N node, m1.large instance 4xEC2 compute units ghz opteron or xeon per unit Carver node, 2 x intel quad 2.67 nehalem / node Franklin node cray xt4, quad 2.3 opteron / node Lawrencium node 2x intel xeon quad 2.66 / node
4 NERSC Benchmark Suite CAM Community Atmosphere Model Stresses processor data movement and MPI interconnect p2p bandwidth Gamess General Atomic and molecular electronic structure system memory access and bandwidth, collective interconnect performance GTC Stresses indirect addressing and random access memory IMPACT-T Integrated Map and Particle Accelerator Tracking Time sensitive to memory bandwidth and MPI performance
5 NERSC Benchmark Suite Cont MAESTRO Stresses memory performance, latency and global communications MILC Stresses memory bandwidth, prefetching and processing power Paratec Parallel Total Energy Code Stresses global communication bandwidth, processing power HPCC 7 synthetic benchmarks Targets computation, communications
6 Performance: Application Runtime Metrics take into account cluster size Performance Analysis of High Performance Computing Applications on the Amazon Web Services Cloud
7 Performance: Percentage runtime communicating using IPM Performance Analysis of High Performance Computing Applications on the Amazon Web Services Cloud
8 Performance: Sustained Flops Performance Analysis of High Performance Computing Applications on the Amazon Web Services Cloud
9 Considerations using EC2 Heterogeneous cpus: Intel Xeon E GHz quad-core processor AMD Opteron GHz dual-core processor AMD Opteron 2218 HE 2.6GHz dual-core processor Cannot optimize code High performance variability Sharing hardware with other vms Slow node communication Gigabit ethernet "Transient errors" Failure to boot, network misconfigurations, virtual machine hangs Not always able to acquire requested cores 256+ cores require scheduling/reservation
10 Cost/Performance compared to Desktop Grid How does Amazon EC2 compare to Grid Computing? "Cost-Benefit Analysis of Cloud Computing versus Desktop Grids", 2009
11 Desktop Grid/Volunteer Computing Fastest virtual supercomputers (From wikipedia) Bitcoin network PFLOPS BOINC PFLOPS 5 PFLOPS 1.6 PFLOPS 730 TFLOPS 210 TFLOPS Amazon HPC 240 teraflops cores
12 Considerations using VC Slow acquisition of computing resources 7.8 days to achieve 1000 cloud node equivalent Slow task deployment time = (reconnections * # tasks) / # clients 1000 tasks to nodes about 45 min Slow completion times deadlines, priorities, 96+% completion rate Average 9 days vs < 4 hours on dedicated
13 When would you use VC over Cloud? Cost-Benefit Analysis of Cloud Computing versus Desktop Grids
14 Cloud Power attainable given VC Costs Resources Per Month Given 12k/Month Processing Storage SETI 514 TeraFLOPS 7.7 TB Amazon 2 TeraFLOPS* 80 TB* *One or the other
15 Cloud-VC Hybrid Approach Cost-Benefit Analysis of Cloud Computing versus Desktop Grids Host VC Server on Cloud: Cost Breakdown
16 Storage vs Bandwidth Storage vs Bandwidth for a fixed budget Cost-Benefit Analysis of Cloud Computing versus Desktop Grids
17 Conclusions VC outperform clouds on cost for large long term and highly parallel projects Projects on the order of weeks VC needs a certain number of volunteer nodes before cost effectiveness High startup costs make short term projects not cost effective 1 small EC2 instance is equivalent to 2.83 VC hosts Hybrid approach can lower startup and monthly costs of VC 40% savings on SETI
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