diff options
author | Andrea Arteaga <andyspiros@gmail.com> | 2012-09-03 01:23:57 +0200 |
---|---|---|
committer | Andrea Arteaga <andyspiros@gmail.com> | 2012-09-03 01:29:15 +0200 |
commit | f1c307d33be3111e15dbf7be415baa049862415c (patch) | |
tree | 0716db45489b3eec78c5065766f50ddad325d3e6 | |
parent | Merge branch 'master' of ssh://git.overlays.gentoo.org/proj/auto-numerical-bench (diff) | |
download | auto-numerical-bench-f1c307d33be3111e15dbf7be415baa049862415c.tar.gz auto-numerical-bench-f1c307d33be3111e15dbf7be415baa049862415c.tar.bz2 auto-numerical-bench-f1c307d33be3111e15dbf7be415baa049862415c.zip |
Initial commit for accuracy lapack.
-rw-r--r-- | accuracy/TestAccuracy.hpp | 75 | ||||
-rw-r--r-- | accuracy/actions/ActionGESV.hpp | 53 | ||||
-rw-r--r-- | accuracy/libraries/LAPACK/main.cpp | 23 | ||||
-rw-r--r-- | accuracy/utilities/LinearCongruential.hpp | 77 | ||||
-rw-r--r-- | accuracy/utilities/Timer.hpp | 43 | ||||
-rw-r--r-- | numbench/benchconfig.py | 10 | ||||
-rw-r--r-- | numbench/modules/__init__.py | 3 | ||||
-rw-r--r-- | numbench/modules/internal/accuracyBase.py | 125 | ||||
-rw-r--r-- | numbench/modules/lapack_accuracy.py | 28 |
9 files changed, 431 insertions, 6 deletions
diff --git a/accuracy/TestAccuracy.hpp b/accuracy/TestAccuracy.hpp new file mode 100644 index 0000000..b0a6cc1 --- /dev/null +++ b/accuracy/TestAccuracy.hpp @@ -0,0 +1,75 @@ +#ifndef TESTACCURACY_HPP +#define TESTACCURACY_HPP + +#include <utility> +#include <cmath> +#include <vector> +#include <iostream> + +#include "utilities/Timer.hpp" + +std::vector<int> getLogSizes( + const int& minsize = 4, + const int& maxsize = 3000, + const unsigned& N = 100u + ) +{ + std::vector<int> sizes(N); + const double amin = std::log(minsize), amax = std::log(maxsize); + const double k = (amax-amin) / (N-1u); + double a; + + for (unsigned i = 0; i < N; ++i) { + a = amin + i*k; + a = std::floor(std::exp(a)+.5); + sizes[i] = a; + } + + sizes.front() = minsize; + sizes.back() = maxsize; + + return sizes; +} + + +template< + template<class> class Action, + typename value_t +> +std::pair<value_t, value_t> testAccuracy( + const int& minsize = 4, + const int& maxsize = 1000, + const unsigned& N = 100u) +{ + std::vector<int> sizes = getLogSizes(minsize, maxsize, N); + Timer t; + + for (std::vector<int>::const_iterator i = sizes.begin(), e = sizes.end(); + i != e; ++i) { + + int size = *i; + std::cout << " -- Size: " << size << " - " << std::flush; + + t.start(); + int N = 0; + double e, emean = 0., e2mean = 0.; + do { + Action<value_t> action(size, N); + action.compute(); + e = action.getResidual(); + emean += e; + e2mean += e*e; + } while(++N < 100 && t.elapsed() < 1. || N < 4); + + std::cout << N << " samples - " << t.elapsed() << " seconds - "; + + emean /= N; + e2mean /= N; + e2mean = std::sqrt(e2mean - emean*emean); + + std::cout << emean << " +/- " << e2mean << std::endl; + + } +} + +#endif // TESTACCURACY_HPP diff --git a/accuracy/actions/ActionGESV.hpp b/accuracy/actions/ActionGESV.hpp new file mode 100644 index 0000000..454e5f6 --- /dev/null +++ b/accuracy/actions/ActionGESV.hpp @@ -0,0 +1,53 @@ +#ifndef ACTIONGESV_HPP +#define ACTIONGESV_HPP + +#include <vector> +#include <iostream> +#include "LinearCongruential.hpp" + +extern "C" { + void dgesv_(const int*, const int*, double*, const int*, double*, + double*, const int*, int*); + + void dgemv_(const char*, const int*, const int*, const double*, + const double*, const int*, const double*, const int*, + const double*, double*, const int*); + + double dnrm2_(const int*, const double*, const int*); +} + +template<typename value_t = double> +class ActionGESV { + typedef std::vector<value_t> storage_t; + typedef LinearCongruential<> rangen_t; + +public: + ActionGESV(const int& size, const unsigned& seed=0) + : size(size), rg(seed), A(rg.fillVector<>(size*size, 0.)), Acopy(A), + x(rg.fillVector(size, 0.)), b(x), bcopy(b) + { } + + void compute() { + const int ONE = 1; + int info; + std::vector<value_t> ipiv(size); + dgesv_(&size, &ONE, &A[0], &size, &ipiv[0], &x[0], &size, &info); + if (info != 0) + std::cerr << "Info: " << info << "\n"; + } + + double getResidual() { + const double alpha = -1., beta = 1.; + const int ONE = 1; + dgemv_("N", &size, &size, &alpha, &Acopy[0], &size, &x[0], &ONE, &beta, + &b[0], &ONE); + return dnrm2_(&size, &b[0], &ONE)/dnrm2_(&size, &bcopy[0], &ONE); + } + +//private: + const int size; + rangen_t rg; + storage_t A, Acopy, x, b, bcopy; +}; + +#endif // ACTIONGESV_HPP diff --git a/accuracy/libraries/LAPACK/main.cpp b/accuracy/libraries/LAPACK/main.cpp new file mode 100644 index 0000000..4dafab4 --- /dev/null +++ b/accuracy/libraries/LAPACK/main.cpp @@ -0,0 +1,23 @@ +#include <iostream> +#include <string> + +#include "TestAccuracy.hpp" + +// Actions +#include "ActionGESV.hpp" + +using namespace std; + +int main(int argc, char **argv) +{ + bool do_gesv = false; + + // Parse input + for (int i = 1; i < argc; ++i) { + std::string arg = argv[i]; + if (arg == "general_solve") do_gesv = true; + } + + if (do_gesv) + testAccuracy<ActionGESV, double>(4, 3000, 20); +} diff --git a/accuracy/utilities/LinearCongruential.hpp b/accuracy/utilities/LinearCongruential.hpp new file mode 100644 index 0000000..a735f77 --- /dev/null +++ b/accuracy/utilities/LinearCongruential.hpp @@ -0,0 +1,77 @@ +#ifndef LINEARCONGRUENTIAL_HPP +#define LINEARCONGRUENTIAL_HPP + +#include "stdint.h" +#include <vector> +#include <limits> + +template< + typename value_t = uint32_t, + value_t a = 1664525u, + value_t c = 1013904223u +> +class LinearCongruential { + typedef typename std::vector<value_t> buf_t; + typedef typename buf_t::iterator iterator_t; + typedef typename buf_t::const_iterator constiterator_t; + +public: + LinearCongruential(const value_t& seed, const int bufsize = 4*1024) + : maxvalue(std::numeric_limits<value_t>::max()) + { + buffer.resize(bufsize); + fillBuffer(seed); + } + + value_t operator()() + { + if (j == buffer.end()) + fillBuffer(buffer.back()); + return *(j++); + } + + template<typename result_t> + void fillVector ( + result_t *vector, + const int& size, + const result_t& min = 0., + const result_t& max = 1. + ) + { + const result_t maxvalue = this->maxvalue; + const result_t diff = max-min; + + for (const result_t *const endp = vector+size; vector!=endp; ++vector) + *vector = diff * (this->operator()() / maxvalue) + min; + } + + + template<typename result_t> + std::vector<result_t> fillVector ( + const int& size, + const result_t& min = 0., + const result_t& max = 1. + ) + { + std::vector<result_t> result(size); + fillVector(&result[0], size, min, max); + return result; + } + +private: + buf_t buffer; + constiterator_t j; + + const value_t maxvalue; + + void fillBuffer(int seed) + { + for (iterator_t i = buffer.begin(), e = buffer.end(); i!=e; ++i) { + *i = ((seed *= a) += c); + } + + j = buffer.begin(); + } +}; + +#endif // LINEARCONGRUENTIAL_HPP diff --git a/accuracy/utilities/Timer.hpp b/accuracy/utilities/Timer.hpp new file mode 100644 index 0000000..6cfeac1 --- /dev/null +++ b/accuracy/utilities/Timer.hpp @@ -0,0 +1,43 @@ +#include <sys/time.h> + +class Timer +{ +public: + Timer() : ZERO(0.) { } + + void start() + { + t = walltime(&ZERO); + } + + double elapsed() + { + return walltime(&t); + } + +private: + double t; + + const double ZERO; + + static double walltime(const double *t0) { + double mic; + double time; + double mega = 0.000001; + struct timeval tp; + struct timezone tzp; + static long base_sec = 0; + static long base_usec = 0; + + (void) gettimeofday(&tp, &tzp); + if (base_sec == 0){ + base_sec = tp.tv_sec; + base_usec = tp.tv_usec; + } + + time = (double)(tp.tv_sec - base_sec); + mic = (double)(tp.tv_usec - base_usec); + time = (time + mic * mega) - *t0; + return(time); + } +}; diff --git a/numbench/benchconfig.py b/numbench/benchconfig.py index 56ef304..bb58651 100644 --- a/numbench/benchconfig.py +++ b/numbench/benchconfig.py @@ -29,6 +29,7 @@ imageformat = None curdir = None scriptdir = None btldir = None +accudir = None libdir = None # Storage directories @@ -88,17 +89,16 @@ def parseArguments(): def setDirs(): - global curdir, scriptdir, btldir, libdir, basedir + global curdir, scriptdir, btldir, accudir, libdir, basedir global testsdir, rootsdir, pkgsdir, reportdir, logdir # Script directories curdir = os.path.abspath('.') scriptdir = os.path.dirname(os.path.realpath(__file__)) - if os.environ.has_key('BTLDIR'): - btldir = os.environ['BTLDIR'] - else: - btldir = '/usr/include/numbench/btl' + + btldir = os.environ.get('BTLDIR', '/usr/include/numbench/btl') + accudir = os.environ.get('ACCUDIR', '/usr/include/numbench/accuracy') # Library directory (lib vs. lib32 vs. lib64) libdir = sp.Popen \ diff --git a/numbench/modules/__init__.py b/numbench/modules/__init__.py index 9696252..cb61b6a 100644 --- a/numbench/modules/__init__.py +++ b/numbench/modules/__init__.py @@ -25,7 +25,8 @@ modnames = [ 'lapack', 'lapacke', 'scalapack', - 'fftw' + 'fftw', + 'lapack_accuracy' ] diff --git a/numbench/modules/internal/accuracyBase.py b/numbench/modules/internal/accuracyBase.py new file mode 100644 index 0000000..e6beeb1 --- /dev/null +++ b/numbench/modules/internal/accuracyBase.py @@ -0,0 +1,125 @@ +from os.path import dirname, join as pjoin +import os, subprocess as sp + +from numbench import benchchildren, benchconfig as cfg +from numbench.utils import alternatives as alt, benchutils as bu +from numbench.benchprint import Print + +def compileExe(test, libname, implementation): + src = pjoin(cfg.accudir, 'libraries', libname.upper(), 'main.cpp') + exe = pjoin(test['testdir'], implementation, 'test') + + # Compiler switches + includes = ['-I' + pjoin(cfg.accudir, i) for i in + ('', 'actions', 'utilities')] + libraries = ['-lm'] + + # Flags (also update compile and run environments) + flags = alt.getFlags(test, libname, implementation) + libenv = "" + for i in [j[2:] for j in flags if j.startswith('-L')]: + libenv += i + ":" + + libenvc = libenv + test['compileenv'].get('LIBRARY_PATH', '') + test['compileenv']['LIBRARY_PATH'] = libenvc + + libenvr = libenv + test['runenv'].get('LD_LIBRARY_PATH', '') + print "\n\nLIBENV: ", libenvr, "\n\n" + test['runenv']['LD_LIBRARY_PATH'] = libenvr + + # Set compile-time environment + compileenv = test['compileenv'].copy() + + + # Set C++ compiler + cxx = compileenv.get('CXX', '') or \ + bu.run_cmd(['portageq', 'envvar', 'CXX']).strip() or '/usr/bin/g++' + + + # Form command-line arguments + args = [cxx, src, '-o', exe] + includes + libraries + flags + + # Open logfile and write environment + logdir = pjoin(test['logdir'], implementation) + bu.mkdir(logdir) + logfile = pjoin(logdir, "accuracyCompile.log") + logfs = file(logfile, 'w') + logfs.write('\n'.join([n + '=' + v for n, v in compileenv.items()])) + logfs.write(3 * '\n' + ' '.join(args) + 3 * '\n') + logfs.flush() + + # Execute compilation + bu.mkdir(dirname(exe)) + proc = sp.Popen(args, stdout=logfs, stderr=sp.STDOUT, env=compileenv) + proc.wait() + logfs.flush() + retcode = proc.returncode + if retcode == 0: + logfs.write("\n\n<<< Compilation terminated successfully >>>") + else: + logfs.write("\n\n<<< Compilation failed >>>") + + # Close, return + logfs.close() + return retcode, exe + + +def runExe(test, implementation, exe, args): + logdir = pjoin(test['logdir'], implementation) + + # Check linking + logfs = file(pjoin(logdir, 'accuracyLinking.log'), 'w') + sp.Popen(['ldd', '-v', exe], stdout=logfs, env=test['runenv']).wait() + logfs.close() + + # Prepare arguments + args = (exe,) + tuple(args) + + # Open log + logfs = file(pjoin(logdir, "accuracyRun.log"), 'w') + logfs.write('\n'.join([n + '=' + v for n, v in test['runenv'].items()])) + logfs.write(3 * '\n' + ' '.join(args) + 3 * '\n') + logfs.flush() + + # Error log + errfname = pjoin(logdir, "accuracyRun.err") + errfs = file(errfname, 'w') + + # Open pipe + try: + testdir = pjoin(test['testdir'], implementation) + proc = sp.Popen(args, bufsize=1, stdout=sp.PIPE, stderr=errfs, \ + env=test['runenv'], cwd=testdir) + benchchildren.append(proc) + except OSError: + Print('Execution failed to start') + Print('Command line: ' + ' '.join(args)) + return -1, None + + result = {} + + # Interpret output + Print('Begin execution') + # TODO: interpret output, store results,... + proc.wait() + Print("Execution finished with return code " + str(proc.returncode)) + + # Close logs + logfs.close() + errp = errfs.tell() + errfs.close() + if errp == 0: + os.unlink(errfname) + + + # Close, return + logfs.close() + return proc.returncode, result + + +def runTest(self, test, implementation): + retcode, exe = compileExe(test, self.libname, implementation) + runExe(test, implementation, exe, self.tests) + +def reportConf(*args): + return {'type':'plot', 'xlabel':'size', 'ylabel':'Error'} diff --git a/numbench/modules/lapack_accuracy.py b/numbench/modules/lapack_accuracy.py new file mode 100644 index 0000000..53f82cc --- /dev/null +++ b/numbench/modules/lapack_accuracy.py @@ -0,0 +1,28 @@ +#===================================================== +# Copyright (C) 2012 Andrea Arteaga <andyspiros@gmail.com> +#===================================================== +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License +# as published by the Free Software Foundation; either version 2 +# of the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +# +from internal import accuracyBase, lapackBase + +class Module: + libname = 'lapack' + descr = 'Accuracy test module for LAPACK implementations' + + __init__ = lapackBase.init + getImplementations = lapackBase.getImplementations + runTest = accuracyBase.runTest + getTests = lapackBase.getTests + reportConf = accuracyBase.reportConf |