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ggml-sycl.cpp
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ggml-sycl.cpp
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//
// MIT license
// Copyright (C) 2024 Intel Corporation
// SPDX-License-Identifier: MIT
//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
#include <algorithm>
#include <assert.h>
#include <atomic>
#include <cinttypes>
#include <cstddef>
#include <cstdint>
#include <float.h>
#include <limits>
#include <stdint.h>
#include <stdio.h>
#include <vector>
#include <cmath>
#include <iostream>
#include <fstream>
#include <stdio.h>
#include <stdlib.h>
#include <sycl/sycl.hpp>
#include <sycl/half_type.hpp>
#include "ggml-sycl.h"
#include "ggml.h"
#include "ggml-backend-impl.h"
/*
Following definition copied from DPCT head files, which are used by ggml-sycl.cpp
*/
// COPY from DPCT head files
#include <sycl/sycl.hpp>
#include <oneapi/mkl.hpp>
#include <map>
#if defined(__linux__)
#include <sys/mman.h>
#elif defined(_WIN64)
#ifndef NOMINMAX
#define NOMINMAX
#endif
#include <windows.h>
#else
#error "Only support Windows and Linux."
#endif
#if defined(__linux__)
#include <unistd.h>
#include <sys/syscall.h>
#endif
#if defined(_WIN64)
#ifndef NOMINMAX
#define NOMINMAX
#endif
#include <windows.h>
#endif
#define DPCT_COMPATIBILITY_TEMP (900)
#if defined(_MSC_VER)
#define __dpct_align__(n) __declspec(align(n))
#define __dpct_inline__ __forceinline
#else
#define __dpct_align__(n) __attribute__((aligned(n)))
#define __dpct_inline__ __inline__ __attribute__((always_inline))
#endif
#if defined(_MSC_VER)
#define __dpct_noinline__ __declspec(noinline)
#else
#define __dpct_noinline__ __attribute__((noinline))
#endif
namespace dpct
{
typedef sycl::queue *queue_ptr;
typedef sycl::event *event_ptr;
typedef char *device_ptr;
typedef uint8_t byte_t;
typedef sycl::buffer<byte_t> buffer_t;
/// SYCL default exception handler
inline auto exception_handler = [](sycl::exception_list exceptions)
{
for (std::exception_ptr const &e : exceptions)
{
try
{
std::rethrow_exception(e);
}
catch (sycl::exception const &e)
{
std::cerr << "Caught asynchronous SYCL exception:" << std::endl
<< e.what() << std::endl
<< "Exception caught at file:" << __FILE__
<< ", line:" << __LINE__ << std::endl;
}
}
};
enum error_code
{
success = 0,
default_error = 999
};
enum memcpy_direction
{
host_to_host,
host_to_device,
device_to_host,
device_to_device,
automatic
};
enum memory_region
{
global = 0, // device global memory
constant, // device constant memory
local, // device local memory
shared, // memory which can be accessed by host and device
};
enum class library_data_t : unsigned char
{
real_float = 0,
complex_float,
real_double,
complex_double,
real_half,
complex_half,
real_bfloat16,
complex_bfloat16,
real_int4,
complex_int4,
real_uint4,
complex_uint4,
real_int8,
complex_int8,
real_uint8,
complex_uint8,
real_int16,
complex_int16,
real_uint16,
complex_uint16,
real_int32,
complex_int32,
real_uint32,
complex_uint32,
real_int64,
complex_int64,
real_uint64,
complex_uint64,
real_int8_4,
real_int8_32,
real_uint8_4,
library_data_t_size
};
template <typename T>
struct DataType
{
using T2 = T;
};
template <typename T>
struct DataType<sycl::vec<T, 2>>
{
using T2 = std::complex<T>;
};
static void destroy_event(event_ptr event)
{
delete event;
}
static inline unsigned int get_tid()
{
#if defined(__linux__)
return syscall(SYS_gettid);
#elif defined(_WIN64)
return GetCurrentThreadId();
#else
#error "Only support Windows and Linux."
#endif
}
namespace detail
{
static void get_version(const sycl::device &dev, int &major, int &minor)
{
// Version string has the following format:
// a. OpenCL<space><major.minor><space><vendor-specific-information>
// b. <major.minor>
std::string ver;
ver = dev.get_info<sycl::info::device::version>();
std::string::size_type i = 0;
while (i < ver.size())
{
if (isdigit(ver[i]))
break;
i++;
}
major = std::stoi(&(ver[i]));
while (i < ver.size())
{
if (ver[i] == '.')
break;
i++;
}
i++;
minor = std::stoi(&(ver[i]));
}
template <typename tag, typename T>
class generic_error_type
{
public:
generic_error_type() = default;
generic_error_type(T value) : value{value} {}
operator T() const { return value; }
private:
T value;
};
} // namespace detail
/// Pitched 2D/3D memory data.
class pitched_data
{
public:
pitched_data() : pitched_data(nullptr, 0, 0, 0) {}
pitched_data(void *data, size_t pitch, size_t x, size_t y)
: _data(data), _pitch(pitch), _x(x), _y(y) {}
void *get_data_ptr() { return _data; }
void set_data_ptr(void *data) { _data = data; }
size_t get_pitch() { return _pitch; }
void set_pitch(size_t pitch) { _pitch = pitch; }
size_t get_x() { return _x; }
void set_x(size_t x) { _x = x; };
size_t get_y() { return _y; }
void set_y(size_t y) { _y = y; }
private:
void *_data;
size_t _pitch, _x, _y;
};
class device_info
{
public:
// get interface
const char *get_name() const { return _name; }
char *get_name() { return _name; }
template <typename WorkItemSizesTy = sycl::range<3>,
std::enable_if_t<std::is_same_v<WorkItemSizesTy, sycl::range<3>> ||
std::is_same_v<WorkItemSizesTy, int *>,
int> = 0>
auto get_max_work_item_sizes() const
{
if constexpr (std::is_same_v<WorkItemSizesTy, sycl::range<3>>)
return sycl::range<3>(_max_work_item_sizes_i[0],
_max_work_item_sizes_i[1],
_max_work_item_sizes_i[2]);
else
{
return _max_work_item_sizes_i;
}
}
template <typename WorkItemSizesTy = sycl::range<3>,
std::enable_if_t<std::is_same_v<WorkItemSizesTy, sycl::range<3>> ||
std::is_same_v<WorkItemSizesTy, int *>,
int> = 0>
auto get_max_work_item_sizes()
{
if constexpr (std::is_same_v<WorkItemSizesTy, sycl::range<3>>)
return sycl::range<3>(_max_work_item_sizes_i[0],
_max_work_item_sizes_i[1],
_max_work_item_sizes_i[2]);
else
{
return _max_work_item_sizes_i;
}
}
bool get_host_unified_memory() const { return _host_unified_memory; }
int get_major_version() const { return _major; }
int get_minor_version() const { return _minor; }
int get_integrated() const { return _integrated; }
int get_max_clock_frequency() const { return _frequency; }
int get_max_compute_units() const { return _max_compute_units; }
int get_max_work_group_size() const { return _max_work_group_size; }
int get_max_sub_group_size() const { return _max_sub_group_size; }
int get_max_work_items_per_compute_unit() const
{
return _max_work_items_per_compute_unit;
}
int get_max_register_size_per_work_group() const
{
return _max_register_size_per_work_group;
}
template <typename NDRangeSizeTy = size_t *,
std::enable_if_t<std::is_same_v<NDRangeSizeTy, size_t *> ||
std::is_same_v<NDRangeSizeTy, int *>,
int> = 0>
auto get_max_nd_range_size() const
{
if constexpr (std::is_same_v<NDRangeSizeTy, size_t *>)
return _max_nd_range_size;
else
return _max_nd_range_size_i;
}
template <typename NDRangeSizeTy = size_t *,
std::enable_if_t<std::is_same_v<NDRangeSizeTy, size_t *> ||
std::is_same_v<NDRangeSizeTy, int *>,
int> = 0>
auto get_max_nd_range_size()
{
if constexpr (std::is_same_v<NDRangeSizeTy, size_t *>)
return _max_nd_range_size;
else
return _max_nd_range_size_i;
}
size_t get_global_mem_size() const { return _global_mem_size; }
size_t get_local_mem_size() const { return _local_mem_size; }
size_t get_max_mem_alloc_size() const { return _max_mem_alloc_size; }
/// Returns the maximum clock rate of device's global memory in kHz. If
/// compiler does not support this API then returns default value 3200000 kHz.
unsigned int get_memory_clock_rate() const { return _memory_clock_rate; }
/// Returns the maximum bus width between device and memory in bits. If
/// compiler does not support this API then returns default value 64 bits.
unsigned int get_memory_bus_width() const { return _memory_bus_width; }
uint32_t get_device_id() const { return _device_id; }
std::array<unsigned char, 16> get_uuid() const { return _uuid; }
/// Returns global memory cache size in bytes.
unsigned int get_global_mem_cache_size() const
{
return _global_mem_cache_size;
}
// set interface
void set_name(const char *name)
{
size_t length = strlen(name);
if (length < 256)
{
std::memcpy(_name, name, length + 1);
}
else
{
std::memcpy(_name, name, 255);
_name[255] = '\0';
}
}
void set_max_work_item_sizes(const sycl::range<3> max_work_item_sizes)
{
for (int i = 0; i < 3; ++i)
_max_work_item_sizes_i[i] = max_work_item_sizes[i];
}
[[deprecated]] void
set_max_work_item_sizes(const sycl::id<3> max_work_item_sizes)
{
for (int i = 0; i < 3; ++i)
{
_max_work_item_sizes_i[i] = max_work_item_sizes[i];
}
}
void set_host_unified_memory(bool host_unified_memory)
{
_host_unified_memory = host_unified_memory;
}
void set_major_version(int major) { _major = major; }
void set_minor_version(int minor) { _minor = minor; }
void set_integrated(int integrated) { _integrated = integrated; }
void set_max_clock_frequency(int frequency) { _frequency = frequency; }
void set_max_compute_units(int max_compute_units)
{
_max_compute_units = max_compute_units;
}
void set_global_mem_size(size_t global_mem_size)
{
_global_mem_size = global_mem_size;
}
void set_local_mem_size(size_t local_mem_size)
{
_local_mem_size = local_mem_size;
}
void set_max_mem_alloc_size(size_t max_mem_alloc_size)
{
_max_mem_alloc_size = max_mem_alloc_size;
}
void set_max_work_group_size(int max_work_group_size)
{
_max_work_group_size = max_work_group_size;
}
void set_max_sub_group_size(int max_sub_group_size)
{
_max_sub_group_size = max_sub_group_size;
}
void
set_max_work_items_per_compute_unit(int max_work_items_per_compute_unit)
{
_max_work_items_per_compute_unit = max_work_items_per_compute_unit;
}
void set_max_nd_range_size(int max_nd_range_size[])
{
for (int i = 0; i < 3; i++)
{
_max_nd_range_size[i] = max_nd_range_size[i];
_max_nd_range_size_i[i] = max_nd_range_size[i];
}
}
void set_memory_clock_rate(unsigned int memory_clock_rate)
{
_memory_clock_rate = memory_clock_rate;
}
void set_memory_bus_width(unsigned int memory_bus_width)
{
_memory_bus_width = memory_bus_width;
}
void
set_max_register_size_per_work_group(int max_register_size_per_work_group)
{
_max_register_size_per_work_group = max_register_size_per_work_group;
}
void set_device_id(uint32_t device_id)
{
_device_id = device_id;
}
void set_uuid(std::array<unsigned char, 16> uuid)
{
_uuid = std::move(uuid);
}
void set_global_mem_cache_size(unsigned int global_mem_cache_size)
{
_global_mem_cache_size = global_mem_cache_size;
}
private:
char _name[256];
int _max_work_item_sizes_i[3];
bool _host_unified_memory = false;
int _major;
int _minor;
int _integrated = 0;
int _frequency;
// Set estimated value 3200000 kHz as default value.
unsigned int _memory_clock_rate = 3200000;
// Set estimated value 64 bits as default value.
unsigned int _memory_bus_width = 64;
unsigned int _global_mem_cache_size;
int _max_compute_units;
int _max_work_group_size;
int _max_sub_group_size;
int _max_work_items_per_compute_unit;
int _max_register_size_per_work_group;
size_t _global_mem_size;
size_t _local_mem_size;
size_t _max_mem_alloc_size;
size_t _max_nd_range_size[3];
int _max_nd_range_size_i[3];
uint32_t _device_id;
std::array<unsigned char, 16> _uuid;
};
static int get_major_version(const sycl::device &dev)
{
int major, minor;
detail::get_version(dev, major, minor);
return major;
}
static int get_minor_version(const sycl::device &dev)
{
int major, minor;
detail::get_version(dev, major, minor);
return minor;
}
static void get_device_info(device_info &out, const sycl::device &dev)
{
device_info prop;
prop.set_name(dev.get_info<sycl::info::device::name>().c_str());
int major, minor;
detail::get_version(dev, major, minor);
prop.set_major_version(major);
prop.set_minor_version(minor);
prop.set_max_work_item_sizes(
#if (__SYCL_COMPILER_VERSION && __SYCL_COMPILER_VERSION < 20220902)
// oneAPI DPC++ compiler older than 2022/09/02, where max_work_item_sizes
// is an enum class element
dev.get_info<sycl::info::device::max_work_item_sizes>());
#else
// SYCL 2020-conformant code, max_work_item_sizes is a struct templated by
// an int
dev.get_info<sycl::info::device::max_work_item_sizes<3>>());
#endif
prop.set_host_unified_memory(dev.has(sycl::aspect::usm_host_allocations));
prop.set_max_clock_frequency(
dev.get_info<sycl::info::device::max_clock_frequency>() * 1000);
prop.set_max_compute_units(
dev.get_info<sycl::info::device::max_compute_units>());
prop.set_max_work_group_size(
dev.get_info<sycl::info::device::max_work_group_size>());
prop.set_global_mem_size(dev.get_info<sycl::info::device::global_mem_size>());
prop.set_local_mem_size(dev.get_info<sycl::info::device::local_mem_size>());
prop.set_max_mem_alloc_size(dev.get_info<sycl::info::device::max_mem_alloc_size>());
#if (defined(SYCL_EXT_INTEL_DEVICE_INFO) && SYCL_EXT_INTEL_DEVICE_INFO >= 6)
if (dev.has(sycl::aspect::ext_intel_memory_clock_rate))
{
unsigned int tmp =
dev.get_info<sycl::ext::intel::info::device::memory_clock_rate>();
if (tmp != 0)
prop.set_memory_clock_rate(1000 * tmp);
}
if (dev.has(sycl::aspect::ext_intel_memory_bus_width))
{
prop.set_memory_bus_width(
dev.get_info<sycl::ext::intel::info::device::memory_bus_width>());
}
if (dev.has(sycl::aspect::ext_intel_device_id))
{
prop.set_device_id(
dev.get_info<sycl::ext::intel::info::device::device_id>());
}
if (dev.has(sycl::aspect::ext_intel_device_info_uuid))
{
prop.set_uuid(dev.get_info<sycl::ext::intel::info::device::uuid>());
}
#elif defined(_MSC_VER) && !defined(__clang__)
#pragma message("get_device_info: querying memory_clock_rate and \
memory_bus_width are not supported by the compiler used. \
Use 3200000 kHz as memory_clock_rate default value. \
Use 64 bits as memory_bus_width default value.")
#else
#warning "get_device_info: querying memory_clock_rate and \
memory_bus_width are not supported by the compiler used. \
Use 3200000 kHz as memory_clock_rate default value. \
Use 64 bits as memory_bus_width default value."
#endif
size_t max_sub_group_size = 1;
std::vector<size_t> sub_group_sizes =
dev.get_info<sycl::info::device::sub_group_sizes>();
for (const auto &sub_group_size : sub_group_sizes)
{
if (max_sub_group_size < sub_group_size)
max_sub_group_size = sub_group_size;
}
prop.set_max_sub_group_size(max_sub_group_size);
prop.set_max_work_items_per_compute_unit(
dev.get_info<sycl::info::device::max_work_group_size>());
int max_nd_range_size[] = {0x7FFFFFFF, 0x7FFFFFFF, 0x7FFFFFFF};
prop.set_max_nd_range_size(max_nd_range_size);
// Estimates max register size per work group, feel free to update the value
// according to device properties.
prop.set_max_register_size_per_work_group(65536);
prop.set_global_mem_cache_size(
dev.get_info<sycl::info::device::global_mem_cache_size>());
out = prop;
}
/// dpct device extension
class device_ext : public sycl::device
{
typedef std::mutex mutex_type;
public:
device_ext() : sycl::device(), _ctx(*this) {}
~device_ext()
{
std::lock_guard<mutex_type> lock(m_mutex);
clear_queues();
}
device_ext(const sycl::device &base) : sycl::device(base), _ctx(*this)
{
std::lock_guard<mutex_type> lock(m_mutex);
init_queues();
}
int is_native_atomic_supported() { return 0; }
int get_major_version() const
{
return dpct::get_major_version(*this);
}
int get_minor_version() const
{
return dpct::get_minor_version(*this);
}
int get_max_compute_units() const
{
return get_device_info().get_max_compute_units();
}
/// Return the maximum clock frequency of this device in KHz.
int get_max_clock_frequency() const
{
return get_device_info().get_max_clock_frequency();
}
int get_integrated() const { return get_device_info().get_integrated(); }
int get_max_sub_group_size() const
{
return get_device_info().get_max_sub_group_size();
}
int get_max_register_size_per_work_group() const
{
return get_device_info().get_max_register_size_per_work_group();
}
int get_max_work_group_size() const
{
return get_device_info().get_max_work_group_size();
}
int get_mem_base_addr_align() const
{
return get_info<sycl::info::device::mem_base_addr_align>();
}
size_t get_global_mem_size() const
{
return get_device_info().get_global_mem_size();
}
size_t get_max_mem_alloc_size() const
{
return get_device_info().get_max_mem_alloc_size();
}
/// Get the number of bytes of free and total memory on the SYCL device.
/// \param [out] free_memory The number of bytes of free memory on the SYCL device.
/// \param [out] total_memory The number of bytes of total memory on the SYCL device.
void get_memory_info(size_t &free_memory, size_t &total_memory)
{
#if (defined(__SYCL_COMPILER_VERSION) && __SYCL_COMPILER_VERSION >= 20221105)
if (!has(sycl::aspect::ext_intel_free_memory))
{
std::cerr << "get_memory_info: ext_intel_free_memory is not supported." << std::endl;
free_memory = 0;
}
else
{
free_memory = get_info<sycl::ext::intel::info::device::free_memory>();
}
#else
std::cerr << "get_memory_info: ext_intel_free_memory is not supported." << std::endl;
free_memory = 0;
#if defined(_MSC_VER) && !defined(__clang__)
#pragma message("Querying the number of bytes of free memory is not supported")
#else
#warning "Querying the number of bytes of free memory is not supported"
#endif
#endif
total_memory = get_device_info().get_global_mem_size();
}
void get_device_info(device_info &out) const
{
dpct::get_device_info(out, *this);
}
device_info get_device_info() const
{
device_info prop;
dpct::get_device_info(prop, *this);
return prop;
}
void reset()
{
std::lock_guard<mutex_type> lock(m_mutex);
clear_queues();
init_queues();
}
sycl::queue &in_order_queue() { return *_q_in_order; }
sycl::queue &out_of_order_queue() { return *_q_out_of_order; }
sycl::queue &default_queue()
{
#ifdef DPCT_USM_LEVEL_NONE
return out_of_order_queue();
#else
return in_order_queue();
#endif // DPCT_USM_LEVEL_NONE
}
void queues_wait_and_throw()
{
std::unique_lock<mutex_type> lock(m_mutex);
std::vector<std::shared_ptr<sycl::queue>> current_queues(
_queues);
lock.unlock();
for (const auto &q : current_queues)
{
q->wait_and_throw();
}
// Guard the destruct of current_queues to make sure the ref count is safe.
lock.lock();
}
sycl::queue *create_queue(bool enable_exception_handler = false)
{
#ifdef DPCT_USM_LEVEL_NONE
return create_out_of_order_queue(enable_exception_handler);
#else
return create_in_order_queue(enable_exception_handler);
#endif // DPCT_USM_LEVEL_NONE
}
sycl::queue *create_in_order_queue(bool enable_exception_handler = false)
{
std::lock_guard<mutex_type> lock(m_mutex);
return create_queue_impl(enable_exception_handler,
sycl::property::queue::in_order());
}
sycl::queue *create_out_of_order_queue(bool enable_exception_handler = false)
{
std::lock_guard<mutex_type> lock(m_mutex);
return create_queue_impl(enable_exception_handler);
}
void destroy_queue(sycl::queue *&queue)
{
std::lock_guard<mutex_type> lock(m_mutex);
_queues.erase(std::remove_if(_queues.begin(), _queues.end(),
[=](const std::shared_ptr<sycl::queue> &q) -> bool
{
return q.get() == queue;
}),
_queues.end());
queue = nullptr;
}
void set_saved_queue(sycl::queue *q)
{
std::lock_guard<mutex_type> lock(m_mutex);
_saved_queue = q;
}
sycl::queue *get_saved_queue() const
{
std::lock_guard<mutex_type> lock(m_mutex);
return _saved_queue;
}
sycl::context get_context() const { return _ctx; }
private:
void clear_queues()
{
_queues.clear();
_q_in_order = _q_out_of_order = _saved_queue = nullptr;
}
void init_queues()
{
_q_in_order = create_queue_impl(true, sycl::property::queue::in_order());
_q_out_of_order = create_queue_impl(true);
_saved_queue = &default_queue();
}
/// Caller should acquire resource \p m_mutex before calling this function.
template <class... Properties>
sycl::queue *create_queue_impl(bool enable_exception_handler,
Properties... properties)
{
sycl::async_handler eh = {};
if (enable_exception_handler)
{
eh = exception_handler;
}
_queues.push_back(std::make_shared<sycl::queue>(
_ctx, *this, eh,
sycl::property_list(
#ifdef DPCT_PROFILING_ENABLED
sycl::property::queue::enable_profiling(),
#endif
properties...)));
return _queues.back().get();
}
void get_version(int &major, int &minor) const
{
detail::get_version(*this, major, minor);
}
sycl::queue *_q_in_order, *_q_out_of_order;
sycl::queue *_saved_queue;
sycl::context _ctx;
std::vector<std::shared_ptr<sycl::queue>> _queues;
mutable mutex_type m_mutex;
};
/// device manager
class dev_mgr
{
public:
device_ext ¤t_device()
{
unsigned int dev_id = current_device_id();
check_id(dev_id);
return *_devs[dev_id];
}
device_ext &cpu_device() const
{
std::lock_guard<std::recursive_mutex> lock(m_mutex);
if (_cpu_device == -1)
{
throw std::runtime_error("no valid cpu device");
}
else
{
return *_devs[_cpu_device];
}
}
device_ext &get_device(unsigned int id) const
{
std::lock_guard<std::recursive_mutex> lock(m_mutex);
check_id(id);
return *_devs[id];
}
unsigned int current_device_id() const
{
std::lock_guard<std::recursive_mutex> lock(m_mutex);
auto it = _thread2dev_map.find(get_tid());
if (it != _thread2dev_map.end())
return it->second;
return DEFAULT_DEVICE_ID;
}
/// Select device with a device ID.
/// \param [in] id The id of the device which can
/// be obtained through get_device_id(const sycl::device).
void select_device(unsigned int id)
{
std::lock_guard<std::recursive_mutex> lock(m_mutex);
check_id(id);
_thread2dev_map[get_tid()] = id;
}
unsigned int device_count() { return _devs.size(); }
unsigned int get_device_id(const sycl::device &dev)
{
unsigned int id = 0;
for (auto dev_item : _devs)
{
if (*dev_item == dev)
{
break;
}
id++;
}
return id;
}
template <class DeviceSelector>
std::enable_if_t<
std::is_invocable_r_v<int, DeviceSelector, const sycl::device &>>
select_device(const DeviceSelector &selector = sycl::gpu_selector_v)
{
sycl::device selected_device = sycl::device(selector);
unsigned int selected_device_id = get_device_id(selected_device);
select_device(selected_device_id);
}
/// Returns the instance of device manager singleton.
static dev_mgr &instance()
{
static dev_mgr d_m;
return d_m;
}
dev_mgr(const dev_mgr &) = delete;
dev_mgr &operator=(const dev_mgr &) = delete;
dev_mgr(dev_mgr &&) = delete;
dev_mgr &operator=(dev_mgr &&) = delete;
private:
mutable std::recursive_mutex m_mutex;
dev_mgr()
{
sycl::device default_device =
sycl::device(sycl::default_selector_v);
_devs.push_back(std::make_shared<device_ext>(default_device));
std::vector<sycl::device> sycl_all_devs =
sycl::device::get_devices(sycl::info::device_type::all);
// Collect other devices except for the default device.
if (default_device.is_cpu())
_cpu_device = 0;
for (auto &dev : sycl_all_devs)
{
if (dev == default_device)
{
continue;
}
_devs.push_back(std::make_shared<device_ext>(dev));
if (_cpu_device == -1 && dev.is_cpu())
{
_cpu_device = _devs.size() - 1;
}
}
}
void check_id(unsigned int id) const
{
if (id >= _devs.size())
{
throw std::runtime_error("invalid device id");
}
}
std::vector<std::shared_ptr<device_ext>> _devs;
/// DEFAULT_DEVICE_ID is used, if current_device_id() can not find current
/// thread id in _thread2dev_map, which means default device should be used
/// for the current thread.
const unsigned int DEFAULT_DEVICE_ID = 0;
/// thread-id to device-id map.
std::map<unsigned int, unsigned int> _thread2dev_map;
int _cpu_device = -1;
};
static inline sycl::queue &get_default_queue()
{
return dev_mgr::instance().current_device().default_queue();
}
namespace detail
{
enum class pointer_access_attribute
{
host_only = 0,
device_only,
host_device,
end
};
static pointer_access_attribute get_pointer_attribute(sycl::queue &q,
const void *ptr)
{
#ifdef DPCT_USM_LEVEL_NONE
return mem_mgr::instance().is_device_ptr(ptr)
? pointer_access_attribute::device_only
: pointer_access_attribute::host_only;
#else
switch (sycl::get_pointer_type(ptr, q.get_context()))
{
case sycl::usm::alloc::unknown:
return pointer_access_attribute::host_only;
case sycl::usm::alloc::device:
return pointer_access_attribute::device_only;
case sycl::usm::alloc::shared:
case sycl::usm::alloc::host:
return pointer_access_attribute::host_device;
}
#endif
}
template <typename ArgT>
inline constexpr std::uint64_t get_type_combination_id(ArgT Val)
{
static_assert((unsigned char)library_data_t::library_data_t_size <=
std::numeric_limits<unsigned char>::max() &&
"library_data_t size exceeds limit.");
static_assert(std::is_same_v<ArgT, library_data_t>, "Unsupported ArgT");
return (std::uint64_t)Val;
}
template <typename FirstT, typename... RestT>
inline constexpr std::uint64_t get_type_combination_id(FirstT FirstVal,
RestT... RestVal)
{
static_assert((std::uint8_t)library_data_t::library_data_t_size <=
std::numeric_limits<unsigned char>::max() &&