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DPL Analysis: fall back to per-entry reading of VLA branches with >616 entries #7912

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Merged
jgrosseo merged 2 commits into from
Jan 5, 2022
Merged

DPL Analysis: fall back to per-entry reading of VLA branches with >616 entries #7912

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357f1b9
DPL Analysis: fall back to per-entry reading of VLA branches with >61…
aalkin Jan 5, 2022
030dd43
fixup! DPL Analysis: fall back to per-entry reading of VLA branches w…
aalkin Jan 5, 2022
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254 changes: 195 additions & 59 deletions Framework/Core/src/TableTreeHelpers.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -196,7 +196,7 @@ std::pair<std::shared_ptr<arrow::ChunkedArray>, std::shared_ptr<arrow::Field>> B
while (readEntries < totalEntries) {
auto readLast = mBranch->GetBulkRead().GetBulkEntries(readEntries, *buffer);
readEntries += readLast;
status &= static_cast<arrow::BooleanBuilder*>(mValueBuilder)->AppendValues(reinterpret_cast<uint8_t const*>(buffer->GetCurrent()), readLast * mListSize);
status &= static_cast<arrow::BooleanBuilder*>(mValueBuilder)->AppendValues(reinterpret_cast<uint8_t const*>(buffer->GetCurrent()), (int64_t)readLast * (int64_t)mListSize);
}
if (mListSize > 1) {
status &= static_cast<arrow::FixedSizeListBuilder*>(mListBuilder.get())->AppendValues(readEntries);
Expand All @@ -214,73 +214,209 @@ std::pair<std::shared_ptr<arrow::ChunkedArray>, std::shared_ptr<arrow::Field>> B
}
} else {
// other types: use serialized read to build arrays directly
auto&& result = arrow::AllocateResizableBuffer(mBranch->GetTotBytes(), mPool);
if (!result.ok()) {
throw runtime_error("Cannot allocate values buffer");
}
std::shared_ptr<arrow::Buffer> arrowValuesBuffer = std::move(result).ValueUnsafe();
auto ptr = arrowValuesBuffer->mutable_data();
if (ptr == nullptr) {
throw runtime_error("Invalid buffer");
}
if (mVLA && totalEntries > 616) {
// special case workaround
auto status = arrow::MakeBuilder(mPool, mArrowType->field(0)->type(), &mBuilder);
if (!status.ok()) {
throw runtime_error("Failed to create value builder");
}
mListBuilder = std::make_unique<arrow::ListBuilder>(mPool, std::move(mBuilder));
mValueBuilder = static_cast<arrow::ListBuilder*>(mListBuilder.get())->value_builder();
void* ptr = nullptr;

switch (mType) {
case EDataType::kUChar_t:
ptr = new uint8_t[255];
break;
case EDataType::kUShort_t:
ptr = new uint16_t[255];
break;
case EDataType::kUInt_t:
ptr = new uint32_t[255];
break;
case EDataType::kULong64_t:
ptr = new uint64_t[255];
break;
case EDataType::kChar_t:
ptr = new int8_t[255];
break;
case EDataType::kShort_t:
ptr = new int16_t[255];
break;
case EDataType::kInt_t:
ptr = new int32_t[255];
break;
case EDataType::kLong64_t:
ptr = new int64_t[255];
break;
case EDataType::kFloat_t:
ptr = new float[255];
break;
case EDataType::kDouble_t:
ptr = new double[255];
break;
default:
throw runtime_error("Unsupported branch type");
}

auto typeSize = TDataType::GetDataType(mType)->Size();
std::unique_ptr<TBufferFile> offsetBuffer;

uint32_t offset = 0;
uint32_t lastOffset;
int count = 0;
std::shared_ptr<arrow::Buffer> arrowOffsetBuffer;
gsl::span<int> offsets;
int size = 0;
uint32_t totalSize = 0;
if (mVLA) {
offsetBuffer.reset(new TBufferFile{TBuffer::EMode::kWrite, 4 * 1024 * 1024});
result = arrow::AllocateResizableBuffer((totalEntries + 1) * sizeof(int), mPool);
int sz;
auto* mSizeBranch = mBranch->GetTree()->GetBranch((std::string{mBranch->GetName()} + TableTreeHelpers::sizeBranchSuffix).c_str());
mSizeBranch->SetAddress(&sz);
mBranch->SetAddress(ptr);
std::vector<int> offsets;

offsets.push_back(0);
for (auto entry = 0; entry < totalEntries; ++entry) {
mBranch->GetEntry(entry);
mSizeBranch->GetEntry(entry);
offsets.push_back(sz + offsets.back());
arrow::Status status;
switch (mType) {
case EDataType::kUChar_t:
status = static_cast<arrow::UInt8Builder*>(mValueBuilder)->AppendValues(reinterpret_cast<uint8_t const*>(ptr), sz);
break;
case EDataType::kUShort_t:
status = static_cast<arrow::UInt16Builder*>(mValueBuilder)->AppendValues(reinterpret_cast<uint16_t const*>(ptr), sz);
break;
case EDataType::kUInt_t:
status = static_cast<arrow::UInt32Builder*>(mValueBuilder)->AppendValues(reinterpret_cast<uint32_t const*>(ptr), sz);
break;
case EDataType::kULong64_t:
status = static_cast<arrow::UInt64Builder*>(mValueBuilder)->AppendValues(reinterpret_cast<uint64_t const*>(ptr), sz);
break;
case EDataType::kChar_t:
status = static_cast<arrow::Int8Builder*>(mValueBuilder)->AppendValues(reinterpret_cast<int8_t const*>(ptr), sz);
break;
case EDataType::kShort_t:
status = static_cast<arrow::Int16Builder*>(mValueBuilder)->AppendValues(reinterpret_cast<int16_t const*>(ptr), sz);
break;
case EDataType::kInt_t:
status = static_cast<arrow::Int32Builder*>(mValueBuilder)->AppendValues(reinterpret_cast<int32_t const*>(ptr), sz);
break;
case EDataType::kLong64_t:
status = static_cast<arrow::Int64Builder*>(mValueBuilder)->AppendValues(reinterpret_cast<int64_t const*>(ptr), sz);
break;
case EDataType::kFloat_t:
status = static_cast<arrow::FloatBuilder*>(mValueBuilder)->AppendValues(reinterpret_cast<float const*>(ptr), sz);
break;
case EDataType::kDouble_t:
status = static_cast<arrow::DoubleBuilder*>(mValueBuilder)->AppendValues(reinterpret_cast<double const*>(ptr), sz);
break;
default:
throw runtime_error("Unsupported branch type");
}
}
status &= static_cast<arrow::ListBuilder*>(mListBuilder.get())->AppendValues(offsets.data(), totalEntries);
status &= static_cast<arrow::ListBuilder*>(mListBuilder.get())->Finish(&array);

mSizeBranch->SetStatus(false);
mSizeBranch->DropBaskets("all");
mSizeBranch->Reset();
mSizeBranch->GetTransientBuffer(0)->Expand(0);

switch (mType) {
case EDataType::kUChar_t:
delete[] static_cast<uint8_t*>(ptr);
break;
case EDataType::kUShort_t:
delete[] static_cast<uint16_t*>(ptr);
break;
case EDataType::kUInt_t:
delete[] static_cast<uint32_t*>(ptr);
break;
case EDataType::kULong64_t:
delete[] static_cast<uint64_t*>(ptr);
break;
case EDataType::kChar_t:
delete[] static_cast<int8_t*>(ptr);
break;
case EDataType::kShort_t:
delete[] static_cast<int16_t*>(ptr);
break;
case EDataType::kInt_t:
delete[] static_cast<int32_t*>(ptr);
break;
case EDataType::kLong64_t:
delete[] static_cast<int64_t*>(ptr);
break;
case EDataType::kFloat_t:
delete[] static_cast<float*>(ptr);
break;
case EDataType::kDouble_t:
delete[] static_cast<double*>(ptr);
break;
default:
throw runtime_error("Unsupported branch type");
}
} else {
auto&& result = arrow::AllocateResizableBuffer(mBranch->GetTotBytes(), mPool);
if (!result.ok()) {
throw runtime_error("Cannot allocate offset buffer");
throw runtime_error("Cannot allocate values buffer");
}
std::shared_ptr<arrow::Buffer> arrowValuesBuffer = std::move(result).ValueUnsafe();
auto ptr = arrowValuesBuffer->mutable_data();
if (ptr == nullptr) {
throw runtime_error("Invalid buffer");
}
arrowOffsetBuffer = std::move(result).ValueUnsafe();
unsigned char* ptrOffset = arrowOffsetBuffer->mutable_data();
auto* tPtrOffset = reinterpret_cast<int*>(ptrOffset);
offsets = gsl::span<int>{tPtrOffset, tPtrOffset + totalEntries + 1};
}

while (readEntries < totalEntries) {
auto readLast = mBranch->GetBulkRead().GetEntriesSerialized(readEntries, *buffer, offsetBuffer.get());
readEntries += readLast;
auto typeSize = TDataType::GetDataType(mType)->Size();
std::unique_ptr<TBufferFile> offsetBuffer;

uint32_t offset = 0;
uint32_t lastOffset;
int count = 0;
std::shared_ptr<arrow::Buffer> arrowOffsetBuffer;
gsl::span<int> offsets;
int size = 0;
uint32_t totalSize = 0;
if (mVLA) {
lastOffset = offset;
for (auto i = 0; i < readLast; ++i) {
offsets[count++] = (int)offset;
offset += swap32_(reinterpret_cast<uint32_t*>(offsetBuffer->GetCurrent())[i]);
offsetBuffer = std::make_unique<TBufferFile>(TBuffer::EMode::kWrite, 4 * 1024 * 1024);
result = arrow::AllocateResizableBuffer((int64_t)(sizeof(int) * (totalEntries + 1)), mPool);
if (!result.ok()) {
throw runtime_error("Cannot allocate offset buffer");
}
arrowOffsetBuffer = std::move(result).ValueUnsafe();
unsigned char* ptrOffset = arrowOffsetBuffer->mutable_data();
auto* tPtrOffset = reinterpret_cast<int*>(ptrOffset);
offsets = gsl::span<int>{tPtrOffset, tPtrOffset + totalEntries + 1};
}

while (readEntries < totalEntries) {
auto readLast = mBranch->GetBulkRead().GetEntriesSerialized(readEntries, *buffer, offsetBuffer.get());
readEntries += readLast;

if (mVLA) {
lastOffset = offset;
for (auto i = 0; i < readLast; ++i) {
offsets[count++] = (int)offset;
offset += swap32_(reinterpret_cast<uint32_t*>(offsetBuffer->GetCurrent())[i]);
}
size = (int)(offset - lastOffset);
} else {
size = readLast * mListSize;
}
size = offset - lastOffset;
swapCopy(ptr, buffer->GetCurrent(), size, typeSize);
ptr += (ptrdiff_t)(size * typeSize);
}
if (mVLA) {
offsets[count] = (int)offset;
totalSize = offset;
} else {
size = readLast * mListSize;
totalSize = readEntries * mListSize;
}
std::shared_ptr<arrow::PrimitiveArray> varray;
switch (mListSize) {
case -1:
varray = std::make_shared<arrow::PrimitiveArray>(mArrowType->field(0)->type(), totalSize, arrowValuesBuffer);
array = std::make_shared<arrow::ListArray>(mArrowType, readEntries, arrowOffsetBuffer, varray);
break;
case 1:
array = std::make_shared<arrow::PrimitiveArray>(mArrowType, readEntries, arrowValuesBuffer);
break;
default:
varray = std::make_shared<arrow::PrimitiveArray>(mArrowType->field(0)->type(), totalSize, arrowValuesBuffer);
array = std::make_shared<arrow::FixedSizeListArray>(mArrowType, readEntries, varray);
}
swapCopy(ptr, buffer->GetCurrent(), size, typeSize);
ptr += size * typeSize;
}
if (mVLA) {
offsets[count] = offset;
totalSize = offset;
} else {
totalSize = readEntries * mListSize;
}
std::shared_ptr<arrow::PrimitiveArray> varray;
switch (mListSize) {
case -1:
varray = std::make_shared<arrow::PrimitiveArray>(mArrowType->field(0)->type(), totalSize, arrowValuesBuffer);
array = std::make_shared<arrow::ListArray>(mArrowType, readEntries, arrowOffsetBuffer, varray);
break;
case 1:
array = std::make_shared<arrow::PrimitiveArray>(mArrowType, readEntries, arrowValuesBuffer);
break;
default:
varray = std::make_shared<arrow::PrimitiveArray>(mArrowType->field(0)->type(), totalSize, arrowValuesBuffer);
array = std::make_shared<arrow::FixedSizeListArray>(mArrowType, readEntries, varray);
}
}

Expand Down