Dr. Dobb's Journal - November 2007 - (Page 31)

d11moha_p5db 9/10/07 10:45 AM Page 31 Listing One void MoveData() { system("F:\\WinSCP3\\WinSCP3 /console /script=c:\\move.txt"); system("del c:\\test\\* /q"); } Listing Two # Automatically answer all prompts negatively not to stall the script on error # option batch on # Disable overwrite confirmations that conflict with the previous # option confirm off # Connect a stored connection called mido (where the password was saved) # open mido # Change remote directory # cd /users/disk2/et/midono1/test # Force binary mode transfer (It is very important for us to transfer the data in binary # format) option transfer binary # Upload the file to current working directory put c:\test\* # Disconnect close # Exit WinSCP exit Listing Three #include #include #include #include int main() { int i,pid; char cmd[100]; static int N=1; for( i=start;i<end;i++) { pid=fork(); sprintf(cmd,"ssh username@node%d.cluster.com ./script/scheduler ",i); system(cmd); exit(0); if(pid==-1) printf("error on node %d\n",i);} return 1; } generated data sets are stored on the Windows machine. Finally, we modified the Generator by adding the function MoveData() (Listing One), which calls a WinSCP script (Listing Two) to copy the data sets from the Windows machine to the Linux cluster. It then deletes these data sets from the Windows machine (to free up space for more generated data sets). MoveData() is then called after each group of data sets is generated. With the NIST statistical suite, input is designed to be interactive. We modified this to accept all the parameters from the command line (some parameters were also hardcoded). We then added these parameters: • • • • Start. The index of the first processed file. End. The index of the last processed file. Exp. The index of the current experiment. Other. Other parameters that are experiment specific. All the intermediate files (a couple of dozens for each file) are suffixed with the file index and experiment index. After processing each file, that file is deleted with all the intermediate files to free space on the Linux cluster. Only the final result file is kept. At this point, the question was how to start the NIST statistical suite on each November 2007 l www.ddj.com l Dr. Dobb’s Journal 31 http://www.codejock.com http://www.codejock.com http://www.ddj.com

Table of Contents Feed for the Digital Edition of Dr. Dobb's Journal - November 2007

Contents Hmmmm Alia Vox Developer Diaries Developer’s Notebook Smart Compilers - But Smart Enough? Conversations Grid-Enabling Resource-Intensive Applications Distributed Computing: Windows and Linux Adobe AIR: Desktop/Web Convergence Transparency on Demand Reusable Associations Effective Concurrency The Agile Edge Swaine’s Flames

Dr. Dobb's Journal - November 2007

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