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to change lines 12 and 14. To make life easier, I will refer to this as the “array” code, as I did with the C example. Listing 2F: F90 Code Example with Output in Loop (Array) 1 program ex1a 2 3

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. The data stripes are written as A, B, C, and D and are color coded. Any block with a p  appended indicates a parity block that is part of a stripe. Figure 3

(total), "=" * 33)) >         sys.stdout.write("%sB \n" % human(total)); 449c450 <     print_header() --- >     #print_header() 475a477 > You can apply this patch to the file as patch ps_mem.py where

The language you choose to use affects I/O patterns and performance. We track a simple write I/O pattern with C and look at how to improve performance. ... still only uses a single write() function. Next, I’ll try 500 iterations (Figure 3C). Figure 3C: Strace excerpt with C one-by-one code; 500 iterations ... The language you choose to use affects I/O patterns and performance. We track a simple write I/O pattern with C and look at how to improve performance. ... Tuning I/O Patterns in C

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 parallel do    do i=1,N       a(i) = b(i) + c(i)    end do !$omp end parallel do #pragma omp parallel for {    for (i=0; i < n; i++) {       a[i] = b[i] + c[i]    } } Once the code inside

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:00:03.000207 In my httpd.conf file, I set a timeout of five seconds. If the SQL query runs for 4.9 seconds, the server should still provide a reasonable answer, but not after 5.1 seconds (Listing 3). Listing 3