Skip to content

GH-36488: [C++] Import/Export ArrowDeviceArray#36489

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
zeroshade merged 16 commits into from
Jul 25, 2023
Merged

GH-36488: [C++] Import/Export ArrowDeviceArray #36489

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
16 commits
Select commit Hold shift + click to select a range
ab98249
GH-36488: [C++] Import/Export ArrowDeviceArray
zeroshade Jul 5, 2023
4d0ac93
linter
zeroshade Jul 5, 2023
30256c1
Linting
zeroshade Jul 5, 2023
d591208
changes from review comments
zeroshade Jul 6, 2023
58c15b0
update from feedback
zeroshade Jul 10, 2023
2d3bcb6
linting
zeroshade Jul 10, 2023
ff2dd19
changes based on feedback
zeroshade Jul 12, 2023
a858ccb
addressing feedback
zeroshade Jul 17, 2023
6e7de49
clang-format stuff
zeroshade Jul 17, 2023
f0deaab
fix lint
zeroshade Jul 18, 2023
849457b
Update cpp/src/arrow/buffer.h
zeroshade Jul 19, 2023
9244ea4
add tests
zeroshade Jul 20, 2023
f79d2a2
linting
zeroshade Jul 20, 2023
5e1939f
update from feedback
zeroshade Jul 21, 2023
1ca39b8
mark `device_id` override to fix compiler warning
zeroshade Jul 24, 2023
d90ce9e
add schema export guard for memory leak
zeroshade Jul 24, 2023
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
22 changes: 20 additions & 2 deletions cpp/src/arrow/buffer.h
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -20,6 +20,7 @@
#include <cstdint>
#include <cstring>
#include <memory>
#include <optional>
#include <string>
#include <string_view>
#include <utility>
Expand DownExpand Up@@ -57,18 +58,31 @@ class ARROW_EXPORT Buffer {
///
/// \note The passed memory must be kept alive through some other means
Buffer(const uint8_t* data, int64_t size)
: is_mutable_(false), is_cpu_(true), data_(data), size_(size), capacity_(size) {
: is_mutable_(false),
is_cpu_(true),
data_(data),
size_(size),
capacity_(size),
device_type_(DeviceAllocationType::kCPU) {
SetMemoryManager(default_cpu_memory_manager());
}

Buffer(const uint8_t* data, int64_t size, std::shared_ptr<MemoryManager> mm,
std::shared_ptr<Buffer> parent = NULLPTR)
std::shared_ptr<Buffer> parent = NULLPTR,
std::optional<DeviceAllocationType> device_type = std::nullopt)
: is_mutable_(false),
data_(data),
size_(size),
capacity_(size),
parent_(std::move(parent)) {
// SetMemoryManager will also set device_type_
SetMemoryManager(std::move(mm));
// if a device type is specified, use that instead. for example:
// CUDA_HOST. The CudaMemoryManager will set device_type_ to CUDA,
// but you can specify CUDA_HOST as the device type to override it.
Comment thread
westonpace marked this conversation as resolved.
if (device_type != std::nullopt) {
device_type_ = device_type;
}

@felipecrvfelipecrvJul 5, 2023

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Would a DCHECK be useful here to confirm that device_type_ ended-up being compatible with the memory manager?

@zeroshadezeroshadeJul 6, 2023

Copy link
Copy Markdown
MemberAuthor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Possibly, we'd have to add a Validate or Valid method to the memory manager to do so, to allow the memory manager to specify if the device_type is valid for it. Not sure how worthwhile that is though.

}

Buffer(uintptr_t address, int64_t size, std::shared_ptr<MemoryManager> mm,
Expand DownExpand Up@@ -240,6 +254,8 @@ class ARROW_EXPORT Buffer {

const std::shared_ptr<MemoryManager>& memory_manager() const { return memory_manager_; }

std::optional<DeviceAllocationType> device_type() const { return device_type_; }

std::shared_ptr<Buffer> parent() const { return parent_; }

/// \brief Get a RandomAccessFile for reading a buffer
Expand DownExpand Up@@ -294,6 +310,7 @@ class ARROW_EXPORT Buffer {
const uint8_t* data_;
int64_t size_;
int64_t capacity_;
std::optional<DeviceAllocationType> device_type_;
Comment thread
westonpace marked this conversation as resolved.

@pitroupitrouJul 25, 2023

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Why is this optional, are there any cases where the information is not available?


// null by default, but may be set
std::shared_ptr<Buffer> parent_;
Expand All@@ -309,6 +326,7 @@ class ARROW_EXPORT Buffer {
void SetMemoryManager(std::shared_ptr<MemoryManager> mm) {
memory_manager_ = std::move(mm);
is_cpu_ = memory_manager_->is_cpu();
device_type_ = memory_manager_->device()->device_type();
}

private:
Expand Down
14 changes: 14 additions & 0 deletions cpp/src/arrow/buffer_test.cc
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -41,6 +41,7 @@ using internal::checked_cast;
using internal::checked_pointer_cast;

static const char kMyDeviceTypeName[] = "arrowtest::MyDevice";
static const DeviceAllocationType kMyDeviceType = DeviceAllocationType::kEXT_DEV;

static const int kMyDeviceAllowCopy = 1;
static const int kMyDeviceAllowView = 2;
Expand DownExpand Up@@ -70,6 +71,8 @@ class MyDevice : public Device {
return checked_cast<const MyDevice&>(other).value_ == value_;
}

DeviceAllocationType device_type() const override { return kMyDeviceType; }

std::shared_ptr<MemoryManager> default_memory_manager() override;

int value() const { return value_; }
Expand DownExpand Up@@ -256,13 +259,15 @@ TEST_F(TestDevice, Copy) {
ASSERT_EQ(buffer->device(), cpu_device_);
ASSERT_TRUE(buffer->is_cpu());
ASSERT_NE(buffer->address(), cpu_src_->address());
ASSERT_EQ(buffer->device_type(), DeviceAllocationType::kCPU);
ASSERT_NE(buffer->data(), nullptr);
AssertBufferEqual(*buffer, "some data");

ASSERT_OK_AND_ASSIGN(buffer, MemoryManager::CopyNonOwned(*cpu_src_, cpu_mm_));
ASSERT_EQ(buffer->device(), cpu_device_);
ASSERT_TRUE(buffer->is_cpu());
ASSERT_NE(buffer->address(), cpu_src_->address());
ASSERT_EQ(buffer->device_type(), DeviceAllocationType::kCPU);
ASSERT_NE(buffer->data(), nullptr);
AssertBufferEqual(*buffer, "some data");

Expand All@@ -271,6 +276,7 @@ TEST_F(TestDevice, Copy) {
ASSERT_EQ(buffer->device(), my_copy_device_);
ASSERT_FALSE(buffer->is_cpu());
ASSERT_NE(buffer->address(), cpu_src_->address());
ASSERT_EQ(buffer->device_type(), kMyDeviceType);
#ifdef NDEBUG
ASSERT_EQ(buffer->data(), nullptr);
#endif
Expand All@@ -280,6 +286,7 @@ TEST_F(TestDevice, Copy) {
ASSERT_EQ(buffer->device(), my_copy_device_);
ASSERT_FALSE(buffer->is_cpu());
ASSERT_NE(buffer->address(), cpu_src_->address());
ASSERT_EQ(buffer->device_type(), kMyDeviceType);
#ifdef NDEBUG
ASSERT_EQ(buffer->data(), nullptr);
#endif
Expand All@@ -290,13 +297,15 @@ TEST_F(TestDevice, Copy) {
ASSERT_EQ(buffer->device(), cpu_device_);
ASSERT_TRUE(buffer->is_cpu());
ASSERT_NE(buffer->address(), my_copy_src_->address());
ASSERT_EQ(buffer->device_type(), DeviceAllocationType::kCPU);
ASSERT_NE(buffer->data(), nullptr);
AssertBufferEqual(*buffer, "some data");

ASSERT_OK_AND_ASSIGN(buffer, MemoryManager::CopyNonOwned(*my_copy_src_, cpu_mm_));
ASSERT_EQ(buffer->device(), cpu_device_);
ASSERT_TRUE(buffer->is_cpu());
ASSERT_NE(buffer->address(), my_copy_src_->address());
ASSERT_EQ(buffer->device_type(), DeviceAllocationType::kCPU);
ASSERT_NE(buffer->data(), nullptr);
AssertBufferEqual(*buffer, "some data");

Expand All@@ -305,6 +314,7 @@ TEST_F(TestDevice, Copy) {
ASSERT_EQ(buffer->device(), my_copy_device_);
ASSERT_FALSE(buffer->is_cpu());
ASSERT_NE(buffer->address(), my_copy_src_->address());
ASSERT_EQ(buffer->device_type(), kMyDeviceType);
#ifdef NDEBUG
ASSERT_EQ(buffer->data(), nullptr);
#endif
Expand All@@ -315,6 +325,7 @@ TEST_F(TestDevice, Copy) {
ASSERT_EQ(buffer->device(), my_copy_device_);
ASSERT_FALSE(buffer->is_cpu());
ASSERT_NE(buffer->address(), my_copy_src_->address());
ASSERT_EQ(buffer->device_type(), kMyDeviceType);
#ifdef NDEBUG
ASSERT_EQ(buffer->data(), nullptr);
#endif
Expand All@@ -330,6 +341,7 @@ TEST_F(TestDevice, View) {
ASSERT_EQ(buffer->device(), cpu_device_);
ASSERT_TRUE(buffer->is_cpu());
ASSERT_EQ(buffer->address(), cpu_src_->address());
ASSERT_EQ(buffer->device_type(), DeviceAllocationType::kCPU);
ASSERT_NE(buffer->data(), nullptr);
AssertBufferEqual(*buffer, "some data");

Expand All@@ -338,6 +350,7 @@ TEST_F(TestDevice, View) {
ASSERT_EQ(buffer->device(), my_view_device_);
ASSERT_FALSE(buffer->is_cpu());
ASSERT_EQ(buffer->address(), cpu_src_->address());
ASSERT_EQ(buffer->device_type(), kMyDeviceType);
#ifdef NDEBUG
ASSERT_EQ(buffer->data(), nullptr);
#endif
Expand All@@ -348,6 +361,7 @@ TEST_F(TestDevice, View) {
ASSERT_EQ(buffer->device(), cpu_device_);
ASSERT_TRUE(buffer->is_cpu());
ASSERT_EQ(buffer->address(), my_copy_src_->address());
ASSERT_EQ(buffer->device_type(), DeviceAllocationType::kCPU);
ASSERT_NE(buffer->data(), nullptr);
AssertBufferEqual(*buffer, "some data");

Expand Down
Loading