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57 lines
1.5 KiB
57 lines
1.5 KiB
#include <cl_number.h>
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#include <cl_io.h>
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#include <cl_float.h>
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#include <cl_float_io.h>
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#include <cl_real.h>
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#include <cl_random.h>
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#include <stdlib.h>
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#include <string.h>
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#include <cl_timing.h>
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int main (int argc, char * argv[])
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{
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int repetitions = 1;
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if ((argc >= 3) && !strcmp(argv[1],"-r")) {
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repetitions = atoi(argv[2]);
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argc -= 2; argv += 2;
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}
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if (argc < 2)
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exit(1);
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#if 0
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uintL len = atoi(argv[1]);
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extern cl_LF compute_pi_brent_salamin (uintC len);
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extern cl_LF compute_pi_brent_salamin_quartic (uintC len);
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extern cl_LF compute_pi_ramanujan_163 (uintC len);
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extern cl_LF compute_pi_ramanujan_163_fast (uintC len);
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cl_LF p;
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{ CL_TIMING;
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for (int rep = repetitions; rep > 0; rep--)
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{ p = compute_pi_brent_salamin(len); }
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}
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// cout << p << endl;
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{ CL_TIMING;
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for (int rep = repetitions; rep > 0; rep--)
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{ p = compute_pi_brent_salamin_quartic(len); }
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}
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// cout << p << endl;
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{ CL_TIMING;
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for (int rep = repetitions; rep > 0; rep--)
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{ p = compute_pi_ramanujan_163(len); }
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}
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// cout << p << endl;
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{ CL_TIMING;
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for (int rep = repetitions; rep > 0; rep--)
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{ p = compute_pi_ramanujan_163_fast(len); }
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}
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// cout << p << endl;
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#else
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// Here the argument is N *decimal* digits, not N*32 bits!
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int n = atoi(argv[1]);
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cl_float_format_t prec = cl_float_format(n);
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cl_F p;
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fprint(cl_stderr, "Computing pi\n");
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{ CL_TIMING; p = cl_pi(prec); }
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fprint(cl_stderr, "Converting pi to decimal\n");
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{ CL_TIMING; cout << p << endl << endl; }
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#endif
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}
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