Barriers infront the scalable systems

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Marian Marinov - mm@yuhu.biz Head of System Operations - Siteground.com OpenFest 2008 Barriers infront the scalable systems AND solutions

Agenda ,[object Object],[object Object],[object Object],[object Object]

$Gene Amdahl's Low The speedup of a program using multiple processors in parallel computing is limited by the sequential fraction of the program.$

Gene Amdahl's Low Parallel Optimizations

Parallel program limitations Багерчета за косене 1 10 40 Време за паралелно косене 40 4 1 Време за първоначално установяване на позция 0 10 40 Нормална косачка за бутане 20 20 20 Total time 60 34 61

Parallel program limitations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Some examples top - 04:58:04 up 36 days, 15:58, 2 users, load average: 0.99, 0.61, 0.25 Tasks: 114 total, 1 running, 113 sleeping, 0 stopped, 0 zombie Cpu0 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu1 :100.0%us, 0.0%sy, 0.0%ni, 0.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu2 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu3 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu4 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu5 : 0.3%us, 0.0%sy, 0.0%ni, 99.7%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu6 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu7 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 8306856k total, 6094848k used, 2212008k free, 184088k buffers Swap: 2040244k total, 64k used, 2040180k free, 5504800k cached

OpenMP & OpenMPI ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

OpenMPI ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Other Solutions MPICH2 - all-new implementation of MPI from Argonne National Laboratory ( US ) Erlang openMosix - is dead... long live linuxpmi.org

OpenFest 2008 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Въпроси ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

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Barriers infront the scalable systems

1. Marian Marinov - mm@yuhu.biz Head of System Operations - Siteground.com OpenFest 2008 Barriers infront the scalable systems AND solutions

3. Gene Amdahl's Low The speedup of a program using multiple processors in parallel computing is limited by the sequential fraction of the program.

4. Gene Amdahl's Low Parallel Optimizations

5. Parallel program limitations Багерчета за косене 1 10 40 Време за паралелно косене 40 4 1 Време за първоначално установяване на позция 0 10 40 Нормална косачка за бутане 20 20 20 Total time 60 34 61

7. Some examples top - 04:58:04 up 36 days, 15:58, 2 users, load average: 0.99, 0.61, 0.25 Tasks: 114 total, 1 running, 113 sleeping, 0 stopped, 0 zombie Cpu0 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu1 :100.0%us, 0.0%sy, 0.0%ni, 0.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu2 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu3 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu4 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu5 : 0.3%us, 0.0%sy, 0.0%ni, 99.7%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu6 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Cpu7 : 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 8306856k total, 6094848k used, 2212008k free, 184088k buffers Swap: 2040244k total, 64k used, 2040180k free, 5504800k cached

10. Other Solutions MPICH2 - all-new implementation of MPI from Argonne National Laboratory ( US ) Erlang openMosix - is dead... long live linuxpmi.org

11. OpenFest 2008 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Въпроси ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

Barriers infront the scalable systems

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Barriers infront the scalable systems