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/*
* Copyright (c) 2019 Arm Limited
* All rights reserved.
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* Copyright (c) 2004-2005 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* 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;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* 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
* OWNER 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.
*
* Authors: Nathan Binkert
*/
#if defined(__APPLE__)
#define _GLIBCPP_USE_C99 1
#endif
#if defined(__sun)
#include <cmath>
#endif
#include <cassert>
#ifdef __SUNPRO_CC
#include <cmath>
#endif
#include "base/stats/text.hh"
#include <cmath>
#include <fstream>
#include <iostream>
#include <sstream>
#include <string>
#include "base/cast.hh"
#include "base/logging.hh"
#include "base/stats/info.hh"
#include "base/str.hh"
using namespace std;
#ifndef NAN
float __nan();
/** Define Not a number. */
#define NAN (__nan())
/** Need to define __nan() */
#define __M5_NAN
#endif
#ifdef __M5_NAN
float
__nan()
{
union {
uint32_t ui;
float f;
} nan;
nan.ui = 0x7fc00000;
return nan.f;
}
#endif
namespace Stats {
std::list<Info *> &statsList();
Text::Text()
: mystream(false), stream(NULL), descriptions(false)
{
}
Text::Text(std::ostream &stream)
: mystream(false), stream(NULL), descriptions(false)
{
open(stream);
}
Text::Text(const std::string &file)
: mystream(false), stream(NULL), descriptions(false)
{
open(file);
}
Text::~Text()
{
if (mystream) {
assert(stream);
delete stream;
}
}
void
Text::open(std::ostream &_stream)
{
if (stream)
panic("stream already set!");
mystream = false;
stream = &_stream;
if (!valid())
fatal("Unable to open output stream for writing\n");
}
void
Text::open(const std::string &file)
{
if (stream)
panic("stream already set!");
mystream = true;
stream = new ofstream(file.c_str(), ios::trunc);
if (!valid())
fatal("Unable to open statistics file for writing\n");
}
bool
Text::valid() const
{
return stream != NULL && stream->good();
}
void
Text::begin()
{
ccprintf(*stream, "\n---------- Begin Simulation Statistics ----------\n");
}
void
Text::end()
{
ccprintf(*stream, "\n---------- End Simulation Statistics ----------\n");
stream->flush();
}
std::string
Text::statName(const std::string &name) const
{
if (path.empty())
return name;
else
return csprintf("%s.%s", path.top(), name);
}
void
Text::beginGroup(const char *name)
{
if (path.empty()) {
path.push(name);
} else {
path.push(csprintf("%s.%s", path.top(), name));
}
}
void
Text::endGroup()
{
assert(!path.empty());
path.pop();
}
bool
Text::noOutput(const Info &info)
{
if (!info.flags.isSet(display))
return true;
if (info.prereq && info.prereq->zero())
return true;
return false;
}
string
ValueToString(Result value, int precision)
{
stringstream val;
if (!std::isnan(value)) {
if (precision != -1)
val.precision(precision);
else if (value == rint(value))
val.precision(0);
val.unsetf(ios::showpoint);
val.setf(ios::fixed);
val << value;
} else {
val << "nan";
}
return val.str();
}
struct ScalarPrint
{
Result value;
string name;
string desc;
Flags flags;
bool descriptions;
int precision;
Result pdf;
Result cdf;
void update(Result val, Result total);
void operator()(ostream &stream, bool oneLine = false) const;
};
void
ScalarPrint::update(Result val, Result total)
{
value = val;
if (total) {
pdf = val / total;
cdf += pdf;
}
}
void
ScalarPrint::operator()(ostream &stream, bool oneLine) const
{
if ((flags.isSet(nozero) && (!oneLine) && value == 0.0) ||
(flags.isSet(nonan) && std::isnan(value)))
return;
stringstream pdfstr, cdfstr;
if (!std::isnan(pdf))
ccprintf(pdfstr, "%.2f%%", pdf * 100.0);
if (!std::isnan(cdf))
ccprintf(cdfstr, "%.2f%%", cdf * 100.0);
if (oneLine) {
ccprintf(stream, " |%12s %10s %10s",
ValueToString(value, precision), pdfstr.str(), cdfstr.str());
} else {
ccprintf(stream, "%-40s %12s %10s %10s", name,
ValueToString(value, precision), pdfstr.str(), cdfstr.str());
if (descriptions) {
if (!desc.empty())
ccprintf(stream, " # %s", desc);
}
stream << endl;
}
}
struct VectorPrint
{
string name;
string separatorString;
string desc;
vector<string> subnames;
vector<string> subdescs;
Flags flags;
bool descriptions;
int precision;
VResult vec;
Result total;
bool forceSubnames;
void operator()(ostream &stream) const;
};
void
VectorPrint::operator()(std::ostream &stream) const
{
size_type _size = vec.size();
Result _total = 0.0;
if (flags.isSet(pdf | cdf)) {
for (off_type i = 0; i < _size; ++i) {
_total += vec[i];
}
}
string base = name + separatorString;
ScalarPrint print;
print.name = name;
print.desc = desc;
print.precision = precision;
print.descriptions = descriptions;
print.flags = flags;
print.pdf = _total ? 0.0 : NAN;
print.cdf = _total ? 0.0 : NAN;
bool havesub = !subnames.empty();
if (_size == 1) {
// If forceSubnames is set, get the first subname (or index in
// the case where there are no subnames) and append it to the
// base name.
if (forceSubnames)
print.name = base + (havesub ? subnames[0] : std::to_string(0));
print.value = vec[0];
print(stream);
return;
}
if ((!flags.isSet(nozero)) || (total != 0)) {
if (flags.isSet(oneline)) {
ccprintf(stream, "%-40s", name);
print.flags = print.flags & (~nozero);
}
for (off_type i = 0; i < _size; ++i) {
if (havesub && (i >= subnames.size() || subnames[i].empty()))
continue;
print.name = base + (havesub ? subnames[i] : std::to_string(i));
print.desc = subdescs.empty() ? desc : subdescs[i];
print.update(vec[i], _total);
print(stream, flags.isSet(oneline));
}
if (flags.isSet(oneline)) {
if (descriptions) {
if (!desc.empty())
ccprintf(stream, " # %s", desc);
}
stream << endl;
}
}
if (flags.isSet(::Stats::total)) {
print.pdf = NAN;
print.cdf = NAN;
print.name = base + "total";
print.desc = desc;
print.value = total;
print(stream);
}
}
struct DistPrint
{
string name;
string separatorString;
string desc;
Flags flags;
bool descriptions;
int precision;
const DistData &data;
DistPrint(const Text *text, const DistInfo &info);
DistPrint(const Text *text, const VectorDistInfo &info, int i);
void init(const Text *text, const Info &info);
void operator()(ostream &stream) const;
};
DistPrint::DistPrint(const Text *text, const DistInfo &info)
: data(info.data)
{
init(text, info);
}
DistPrint::DistPrint(const Text *text, const VectorDistInfo &info, int i)
: data(info.data[i])
{
init(text, info);
name = text->statName(
info.name + "_" +
(info.subnames[i].empty() ? (std::to_string(i)) : info.subnames[i]));
if (!info.subdescs[i].empty())
desc = info.subdescs[i];
}
void
DistPrint::init(const Text *text, const Info &info)
{
name = text->statName(info.name);
separatorString = info.separatorString;
desc = info.desc;
flags = info.flags;
precision = info.precision;
descriptions = text->descriptions;
}
void
DistPrint::operator()(ostream &stream) const
{
if (flags.isSet(nozero) && data.samples == 0) return;
string base = name + separatorString;
ScalarPrint print;
print.precision = precision;
print.flags = flags;
print.descriptions = descriptions;
print.desc = desc;
print.pdf = NAN;
print.cdf = NAN;
if (flags.isSet(oneline)) {
print.name = base + "bucket_size";
print.value = data.bucket_size;
print(stream);
print.name = base + "min_bucket";
print.value = data.min;
print(stream);
print.name = base + "max_bucket";
print.value = data.max;
print(stream);
}
print.name = base + "samples";
print.value = data.samples;
print(stream);
print.name = base + "mean";
print.value = data.samples ? data.sum / data.samples : NAN;
print(stream);
if (data.type == Hist) {
print.name = base + "gmean";
print.value = data.samples ? exp(data.logs / data.samples) : NAN;
print(stream);
}
Result stdev = NAN;
if (data.samples)
stdev = sqrt((data.samples * data.squares - data.sum * data.sum) /
(data.samples * (data.samples - 1.0)));
print.name = base + "stdev";
print.value = stdev;
print(stream);
if (data.type == Deviation)
return;
size_t size = data.cvec.size();
Result total = 0.0;
if (data.type == Dist && data.underflow != NAN)
total += data.underflow;
for (off_type i = 0; i < size; ++i)
total += data.cvec[i];
if (data.type == Dist && data.overflow != NAN)
total += data.overflow;
if (total) {
print.pdf = 0.0;
print.cdf = 0.0;
}
if (data.type == Dist && data.underflow != NAN) {
print.name = base + "underflows";
print.update(data.underflow, total);
print(stream);
}
if (flags.isSet(oneline)) {
ccprintf(stream, "%-40s", name);
}
for (off_type i = 0; i < size; ++i) {
stringstream namestr;
namestr << base;
Counter low = i * data.bucket_size + data.min;
Counter high = ::min(low + data.bucket_size - 1.0, data.max);
namestr << low;
if (low < high)
namestr << "-" << high;
print.name = namestr.str();
print.update(data.cvec[i], total);
print(stream, flags.isSet(oneline));
}
if (flags.isSet(oneline)) {
if (descriptions) {
if (!desc.empty())
ccprintf(stream, " # %s", desc);
}
stream << endl;
}
if (data.type == Dist && data.overflow != NAN) {
print.name = base + "overflows";
print.update(data.overflow, total);
print(stream);
}
print.pdf = NAN;
print.cdf = NAN;
if (data.type == Dist && data.min_val != NAN) {
print.name = base + "min_value";
print.value = data.min_val;
print(stream);
}
if (data.type == Dist && data.max_val != NAN) {
print.name = base + "max_value";
print.value = data.max_val;
print(stream);
}
print.name = base + "total";
print.value = total;
print(stream);
}
void
Text::visit(const ScalarInfo &info)
{
if (noOutput(info))
return;
ScalarPrint print;
print.value = info.result();
print.name = statName(info.name);
print.desc = info.desc;
print.flags = info.flags;
print.descriptions = descriptions;
print.precision = info.precision;
print.pdf = NAN;
print.cdf = NAN;
print(*stream);
}
void
Text::visit(const VectorInfo &info)
{
if (noOutput(info))
return;
size_type size = info.size();
VectorPrint print;
print.name = statName(info.name);
print.separatorString = info.separatorString;
print.desc = info.desc;
print.flags = info.flags;
print.descriptions = descriptions;
print.precision = info.precision;
print.vec = info.result();
print.total = info.total();
print.forceSubnames = false;
if (!info.subnames.empty()) {
for (off_type i = 0; i < size; ++i) {
if (!info.subnames[i].empty()) {
print.subnames = info.subnames;
print.subnames.resize(size);
for (off_type i = 0; i < size; ++i) {
if (!info.subnames[i].empty() &&
!info.subdescs[i].empty()) {
print.subdescs = info.subdescs;
print.subdescs.resize(size);
break;
}
}
break;
}
}
}
print(*stream);
}
void
Text::visit(const Vector2dInfo &info)
{
if (noOutput(info))
return;
bool havesub = false;
VectorPrint print;
if (!info.y_subnames.empty()) {
for (off_type i = 0; i < info.y; ++i) {
if (!info.y_subnames[i].empty()) {
print.subnames = info.y_subnames;
break;
}
}
}
print.flags = info.flags;
print.separatorString = info.separatorString;
print.descriptions = descriptions;
print.precision = info.precision;
print.forceSubnames = true;
if (!info.subnames.empty()) {
for (off_type i = 0; i < info.x; ++i)
if (!info.subnames[i].empty())
havesub = true;
}
VResult tot_vec(info.y);
for (off_type i = 0; i < info.x; ++i) {
if (havesub && (i >= info.subnames.size() || info.subnames[i].empty()))
continue;
off_type iy = i * info.y;
VResult yvec(info.y);
Result total = 0.0;
for (off_type j = 0; j < info.y; ++j) {
yvec[j] = info.cvec[iy + j];
tot_vec[j] += yvec[j];
total += yvec[j];
}
print.name = statName(
info.name + "_" +
(havesub ? info.subnames[i] : std::to_string(i)));
print.desc = info.desc;
print.vec = yvec;
print.total = total;
print(*stream);
}
// Create a subname for printing the total
vector<string> total_subname;
total_subname.push_back("total");
if (info.flags.isSet(::Stats::total) && (info.x > 1)) {
print.name = statName(info.name);
print.subnames = total_subname;
print.desc = info.desc;
print.vec = VResult(1, info.total());
print.flags = print.flags & ~total;
print(*stream);
}
}
void
Text::visit(const DistInfo &info)
{
if (noOutput(info))
return;
DistPrint print(this, info);
print(*stream);
}
void
Text::visit(const VectorDistInfo &info)
{
if (noOutput(info))
return;
for (off_type i = 0; i < info.size(); ++i) {
DistPrint print(this, info, i);
print(*stream);
}
}
void
Text::visit(const FormulaInfo &info)
{
visit((const VectorInfo &)info);
}
/*
This struct implements the output methods for the sparse
histogram stat
*/
struct SparseHistPrint
{
string name;
string separatorString;
string desc;
Flags flags;
bool descriptions;
int precision;
const SparseHistData &data;
SparseHistPrint(const Text *text, const SparseHistInfo &info);
void init(const Text *text, const Info &info);
void operator()(ostream &stream) const;
};
/* Call initialization function */
SparseHistPrint::SparseHistPrint(const Text *text, const SparseHistInfo &info)
: data(info.data)
{
init(text, info);
}
/* Initialization function */
void
SparseHistPrint::init(const Text *text, const Info &info)
{
name = text->statName(info.name);
separatorString = info.separatorString;
desc = info.desc;
flags = info.flags;
precision = info.precision;
descriptions = text->descriptions;
}
/* Grab data from map and write to output stream */
void
SparseHistPrint::operator()(ostream &stream) const
{
string base = name + separatorString;
ScalarPrint print;
print.precision = precision;
print.flags = flags;
print.descriptions = descriptions;
print.desc = desc;
print.pdf = NAN;
print.cdf = NAN;
print.name = base + "samples";
print.value = data.samples;
print(stream);
MCounter::const_iterator it;
for (it = data.cmap.begin(); it != data.cmap.end(); it++) {
stringstream namestr;
namestr << base;
namestr <<(*it).first;
print.name = namestr.str();
print.value = (*it).second;
print(stream);
}
}
void
Text::visit(const SparseHistInfo &info)
{
if (noOutput(info))
return;
SparseHistPrint print(this, info);
print(*stream);
}
Output *
initText(const string &filename, bool desc)
{
static Text text;
static bool connected = false;
if (!connected) {
text.open(*simout.findOrCreate(filename)->stream());
text.descriptions = desc;
connected = true;
}
return &text;
}
} // namespace Stats