summaryrefslogtreecommitdiff
path: root/src/gpgpu-sim/histogram.cc
diff options
context:
space:
mode:
authorTor Aamodt <[email protected]>2010-10-16 14:25:19 -0800
committerTor Aamodt <[email protected]>2010-10-16 14:25:19 -0800
commit2072e7ff2037c19a0c346e60469949c9437569bf (patch)
tree8235c2c67ca8f231c14d99bc1db660b26812734e /src/gpgpu-sim/histogram.cc
parent58459bf7a55010eccf9940cfdb53cbc854b0989c (diff)
1. refactoring histogram/logger so that classes are in header files
2. starting to redo cache_t 3. deleting more perf counters 4. other minor cleaning [git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 7869]
Diffstat (limited to 'src/gpgpu-sim/histogram.cc')
-rw-r--r--src/gpgpu-sim/histogram.cc162
1 files changed, 162 insertions, 0 deletions
diff --git a/src/gpgpu-sim/histogram.cc b/src/gpgpu-sim/histogram.cc
new file mode 100644
index 0000000..d6f6283
--- /dev/null
+++ b/src/gpgpu-sim/histogram.cc
@@ -0,0 +1,162 @@
+/*
+ * histogram.cc
+ *
+ * Copyright (c) 2009 by Tor M. Aamodt, Wilson W. L. Fung and the
+ * University of British Columbia
+ * Vancouver, BC V6T 1Z4
+ * All Rights Reserved.
+ *
+ * THIS IS A LEGAL DOCUMENT BY DOWNLOADING GPGPU-SIM, YOU ARE AGREEING TO THESE
+ * TERMS AND CONDITIONS.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * NOTE: The files libcuda/cuda_runtime_api.c and src/cuda-sim/cuda-math.h
+ * are derived from the CUDA Toolset available from http://www.nvidia.com/cuda
+ * (property of NVIDIA). The files benchmarks/BlackScholes/ and
+ * benchmarks/template/ are derived from the CUDA SDK available from
+ * http://www.nvidia.com/cuda (also property of NVIDIA). The files from
+ * src/intersim/ are derived from Booksim (a simulator provided with the
+ * textbook "Principles and Practices of Interconnection Networks" available
+ * from http://cva.stanford.edu/books/ppin/). As such, those files are bound by
+ * the corresponding legal terms and conditions set forth separately (original
+ * copyright notices are left in files from these sources and where we have
+ * modified a file our copyright notice appears before the original copyright
+ * notice).
+ *
+ * Using this version of GPGPU-Sim requires a complete installation of CUDA
+ * which is distributed seperately by NVIDIA under separate terms and
+ * conditions. To use this version of GPGPU-Sim with OpenCL requires a
+ * recent version of NVIDIA's drivers which support OpenCL.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the University of British Columbia nor the names of
+ * its contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * 4. This version of GPGPU-SIM is distributed freely for non-commercial use only.
+ *
+ * 5. No nonprofit user may place any restrictions on the use of this software,
+ * including as modified by the user, by any other authorized user.
+ *
+ * 6. GPGPU-SIM was developed primarily by Tor M. Aamodt, Wilson W. L. Fung,
+ * Ali Bakhoda, George L. Yuan, at the University of British Columbia,
+ * Vancouver, BC V6T 1Z4
+ */
+
+#include "histogram.h"
+
+#include <assert.h>
+
+binned_histogram::binned_histogram (std::string name, int nbins, int* bins)
+ : m_name(name), m_nbins(nbins), m_bins(NULL), m_bin_cnts(new int[m_nbins]), m_maximum(0), m_sum(0)
+{
+ if (bins) {
+ m_bins = new int[m_nbins];
+ for (int i = 0; i < nbins; i++) {
+ m_bins[i] = bins[i];
+ }
+ }
+
+ reset_bins();
+}
+
+binned_histogram::binned_histogram (const binned_histogram& other)
+ : m_name(other.m_name), m_nbins(other.m_nbins), m_bins(NULL),
+ m_bin_cnts(new int[m_nbins]), m_maximum(0), m_sum(0)
+{
+ for (int i = 0; i < m_nbins; i++) {
+ m_bin_cnts[i] = other.m_bin_cnts[i];
+ }
+}
+
+void binned_histogram::reset_bins () {
+ for (int i = 0; i < m_nbins; i++) {
+ m_bin_cnts[i] = 0;
+ }
+}
+
+void binned_histogram::add2bin (int sample) {
+ assert(0);
+ m_maximum = (sample > m_maximum)? sample : m_maximum;
+}
+
+void binned_histogram::fprint (FILE *fout) const
+{
+ if (m_name.c_str() != NULL) fprintf(fout, "%s = ", m_name.c_str());
+ int total_sample = 0;
+ for (int i = 0; i < m_nbins; i++) {
+ fprintf(fout, "%d ", m_bin_cnts[i]);
+ total_sample += m_bin_cnts[i];
+ }
+ fprintf(fout, "max=%d ", m_maximum);
+ float avg = 0.0f;
+ if (total_sample > 0) {
+ avg = (float)m_sum / total_sample;
+ }
+ fprintf(fout, "avg=%0.2f ", avg);
+}
+
+binned_histogram::~binned_histogram () {
+ if (m_bins) delete[] m_bins;
+ delete[] m_bin_cnts;
+}
+
+pow2_histogram::pow2_histogram (std::string name, int nbins, int* bins)
+ : binned_histogram (name, nbins, bins) {}
+
+void pow2_histogram::add2bin (int sample) {
+ assert(sample >= 0);
+
+ int bin;
+ int v = sample;
+ register unsigned int shift;
+
+ bin = (v > 0xFFFF) << 4; v >>= bin;
+ shift = (v > 0xFF ) << 3; v >>= shift; bin |= shift;
+ shift = (v > 0xF ) << 2; v >>= shift; bin |= shift;
+ shift = (v > 0x3 ) << 1; v >>= shift; bin |= shift;
+ bin |= (v >> 1);
+ bin += (sample > 0)? 1:0;
+
+ m_bin_cnts[bin] += 1;
+
+ m_maximum = (sample > m_maximum)? sample : m_maximum;
+ m_sum += sample;
+}
+
+linear_histogram::linear_histogram (int stride, const char *name, int nbins, int* bins)
+ : binned_histogram (name, nbins, bins), m_stride(stride)
+{
+}
+
+void linear_histogram::add2bin (int sample) {
+ assert(sample >= 0);
+
+ int bin = sample / m_stride;
+ if (bin >= m_nbins) bin = m_nbins - 1;
+
+ m_bin_cnts[bin] += 1;
+
+ m_maximum = (sample > m_maximum)? sample : m_maximum;
+ m_sum += sample;
+}