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// export LD_LIBRARY_PATH=.:$LD_LIBRARY_PATH
// g++ `root-config --cflags` -Iawkward-1.0/include -Iawkward-1.0/rapidjson/include chep2019-studies-3.cpp -L. -lawkward `root-config --libs` -lROOTNTuple -o chep2019-studies-3 && ./chep2019-studies-3
#include <cstring>
#include <chrono>
#include <iostream>
#include "awkward/Identity.h"
#include "awkward/array/RawArray.h"
#include "awkward/array/ListOffsetArray.h"
#include "ROOT/RNTupleModel.hxx"
#include "ROOT/RNTupleMetrics.hxx"
#include "ROOT/RNTupleOptions.hxx"
#include "ROOT/RNTupleUtil.hxx"
#include "ROOT/RNTuple.hxx"
#include "ROOT/RNTupleView.hxx"
#include "ROOT/RNTupleDS.hxx"
#include "ROOT/RNTupleDescriptor.hxx"
#define LENJAGGED0 1073741824
#define LENJAGGED1 134217728
#define LENJAGGED2 16777216
#define LENJAGGED3 2097152
#define kDefaultClusterSizeEntries 64000
namespace ak = awkward;
template <typename V, typename T>
void fillpages(T* array, V& view, int64_t& offset, int64_t length, int64_t shift) {
int64_t current = 0;
while (current < length) {
T* data = (T*)view.fField.Map(offset + current);
int32_t num = view.fField.fPrincipalColumn->fCurrentPage.GetNElements();
int32_t skipped = (offset + current) - view.fField.fPrincipalColumn->fCurrentPage.GetGlobalRangeFirst();
int32_t remaining = num - skipped;
if (current + remaining > length) {
remaining = length - current;
}
if (remaining > 0) {
memcpy(&array[current + shift], data, remaining*sizeof(T));
}
current += remaining;
}
offset += current;
}
double jagged0() {
double total_length = 0.0;
auto model = ROOT::Experimental::RNTupleModel::Create();
ROOT::Experimental::RNTupleReadOptions options;
auto ntuple = ROOT::Experimental::RNTupleReader::Open(std::move(model), "jagged0", "data/sample-jagged0.ntuple", options);
auto view0 = ntuple->GetViewCollection("field");
int64_t offset0 = 0;
for (uint64_t entry = 0; entry < LENJAGGED0; entry += kDefaultClusterSizeEntries) {
int64_t length = kDefaultClusterSizeEntries;
if (entry + length > LENJAGGED0) {
length = LENJAGGED0 - entry;
}
ak::RawArrayOf<float> content(ak::Identity::none(), length);
float* rawcontent = content.ptr().get();
fillpages(rawcontent, view0, offset0, length, 0);
total_length += length;
}
std::cout << total_length << std::endl;
return total_length;
}
double jagged1() {
double total_length = 0.0;
auto model = ROOT::Experimental::RNTupleModel::Create();
ROOT::Experimental::RNTupleReadOptions options;
auto ntuple = ROOT::Experimental::RNTupleReader::Open(std::move(model), "jagged1", "data/sample-jagged1.ntuple", options);
auto view1 = ntuple->GetViewCollection("field");
auto view0 = view1.GetView<float>("float");
int64_t offset1 = 0;
int64_t offset0 = 0;
for (int64_t entry = 0; entry < LENJAGGED1; entry += kDefaultClusterSizeEntries) {
int64_t length = kDefaultClusterSizeEntries;
if (entry + length > LENJAGGED1) {
length = LENJAGGED1 - entry;
}
ak::Index32 offsets1(length + 1);
int32_t* rawoffsets1 = offsets1.ptr().get();
rawoffsets1[0] = 0;
fillpages(rawoffsets1, view1, offset1, length, 1);
length = rawoffsets1[length];
ak::RawArrayOf<float> content(ak::Identity::none(), length);
float* rawcontent = content.borrow(0);
fillpages(rawcontent, view0, offset0, length, 0);
ak::ListOffsetArray32 done(ak::Identity::none(), offsets1, content.shallow_copy());
total_length += length;
}
std::cout << total_length << std::endl;
return total_length;
}
double jagged2() {
double total_length = 0.0;
auto model = ROOT::Experimental::RNTupleModel::Create();
ROOT::Experimental::RNTupleReadOptions options;
auto ntuple = ROOT::Experimental::RNTupleReader::Open(std::move(model), "jagged2", "data/sample-jagged2.ntuple", options);
auto view2 = ntuple->GetViewCollection("field");
auto view1 = view2.GetViewCollection("std::vector<float>");
auto view0 = view1.GetView<float>("float");
int64_t offset2 = 0;
int64_t offset1 = 0;
int64_t offset0 = 0;
for (int64_t entry = 0; entry < LENJAGGED2; entry += kDefaultClusterSizeEntries) {
int64_t length = kDefaultClusterSizeEntries;
if (entry + length > LENJAGGED2) {
length = LENJAGGED2 - entry;
}
ak::Index32 offsets2(length + 1);
int32_t* rawoffsets2 = offsets2.ptr().get();
rawoffsets2[0] = 0;
fillpages(rawoffsets2, view2, offset2, length, 1);
length = rawoffsets2[length];
ak::Index32 offsets1(length + 1);
int32_t* rawoffsets1 = offsets1.ptr().get();
rawoffsets1[0] = 0;
fillpages(rawoffsets1, view1, offset1, length, 1);
length = rawoffsets1[length];
ak::RawArrayOf<float> content(ak::Identity::none(), length);
float* rawcontent = content.borrow(0);
fillpages(rawcontent, view0, offset0, length, 0);
ak::ListOffsetArray32 tmp(ak::Identity::none(), offsets1, content.shallow_copy());
ak::ListOffsetArray32 done(ak::Identity::none(), offsets2, tmp.shallow_copy());
total_length += length;
}
std::cout << total_length << std::endl;
return total_length;
}
double jagged3() {
double total_length = 0.0;
auto model = ROOT::Experimental::RNTupleModel::Create();
ROOT::Experimental::RNTupleReadOptions options;
auto ntuple = ROOT::Experimental::RNTupleReader::Open(std::move(model), "jagged3", "data/sample-jagged3.ntuple", options);
auto view3 = ntuple->GetViewCollection("field");
auto view2 = view3.GetViewCollection("std::vector<std::vector<float>>");
auto view1 = view2.GetViewCollection("std::vector<float>");
auto view0 = view1.GetView<float>("float");
int64_t offset3 = 0;
int64_t offset2 = 0;
int64_t offset1 = 0;
int64_t offset0 = 0;
for (int64_t entry = 0; entry < LENJAGGED3; entry += kDefaultClusterSizeEntries) {
int64_t length = kDefaultClusterSizeEntries;
if (entry + length > LENJAGGED3) {
length = LENJAGGED3 - entry;
}
ak::Index32 offsets3(length + 1);
int32_t* rawoffsets3 = offsets3.ptr().get();
rawoffsets3[0] = 0;
fillpages(rawoffsets3, view3, offset3, length, 1);
length = rawoffsets3[length];
ak::Index32 offsets2(length + 1);
int32_t* rawoffsets2 = offsets2.ptr().get();
rawoffsets2[0] = 0;
fillpages(rawoffsets2, view2, offset2, length, 1);
length = rawoffsets2[length];
ak::Index32 offsets1(length + 1);
int32_t* rawoffsets1 = offsets1.ptr().get();
rawoffsets1[0] = 0;
fillpages(rawoffsets1, view1, offset1, length, 1);
length = rawoffsets1[length];
ak::RawArrayOf<float> content(ak::Identity::none(), length);
float* rawcontent = content.borrow(0);
fillpages(rawcontent, view0, offset0, length, 0);
ak::ListOffsetArray32 tmp1(ak::Identity::none(), offsets1, content.shallow_copy());
ak::ListOffsetArray32 tmp2(ak::Identity::none(), offsets2, tmp1.shallow_copy());
ak::ListOffsetArray32 done(ak::Identity::none(), offsets3, tmp2.shallow_copy());
total_length += length;
}
std::cout << total_length << std::endl;
return total_length;
}
int main() {
{
auto start0 = std::chrono::high_resolution_clock::now();
double num0 = jagged0();
auto stop0 = std::chrono::high_resolution_clock::now();
double walltime0 = std::chrono::duration<double>(stop0 - start0).count();
std::cout << "jagged0 " << walltime0 << "sec;\t" << num0/walltime0/1e6 << " million floats/sec" << std::endl;
}
{
auto start1 = std::chrono::high_resolution_clock::now();
double num1 = jagged1();
auto stop1 = std::chrono::high_resolution_clock::now();
double walltime1 = std::chrono::duration<double>(stop1 - start1).count();
std::cout << "jagged1 " << walltime1 << "sec;\t" << num1/walltime1/1e6 << " million floats/sec" << std::endl;
}
{
auto start2 = std::chrono::high_resolution_clock::now();
double num2 = jagged2();
auto stop2 = std::chrono::high_resolution_clock::now();
double walltime2 = std::chrono::duration<double>(stop2 - start2).count();
std::cout << "jagged2 " << walltime2 << "sec;\t" << num2/walltime2/1e6 << " million floats/sec" << std::endl;
}
{
auto start3 = std::chrono::high_resolution_clock::now();
double num3 = jagged3();
auto stop3 = std::chrono::high_resolution_clock::now();
double walltime3 = std::chrono::duration<double>(stop3 - start3).count();
std::cout << "jagged3 " << walltime3 << "sec;\t" << num3/walltime3/1e6 << " million floats/sec" << std::endl;
}
return 0;
}
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