502 lines
15 KiB
C++
502 lines
15 KiB
C++
/*
|
|
Copyright (c) 2014-2016 Intel Corporation. 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 Intel Corporation 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
|
|
HOLDER 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.
|
|
*/
|
|
|
|
|
|
#include "compiler_if_host.h"
|
|
|
|
#include <malloc.h>
|
|
#ifndef TARGET_WINNT
|
|
#include <alloca.h>
|
|
#endif // TARGET_WINNT
|
|
|
|
// Global counter on host.
|
|
// This variable is used if P2OPT_offload_do_data_persistence == 2.
|
|
// The variable used to identify offload constructs contained in one procedure.
|
|
// Increment of OFFLOAD_CALL_COUNT is inserted at entries of HOST routines with
|
|
// offload constructs.
|
|
static int offload_call_count = 0;
|
|
|
|
extern "C" OFFLOAD OFFLOAD_TARGET_ACQUIRE(
|
|
TARGET_TYPE target_type,
|
|
int target_number,
|
|
int is_optional,
|
|
_Offload_status* status,
|
|
const char* file,
|
|
uint64_t line
|
|
)
|
|
{
|
|
bool retval;
|
|
OFFLOAD ofld;
|
|
|
|
// initialize status
|
|
if (status != 0) {
|
|
status->result = OFFLOAD_UNAVAILABLE;
|
|
status->device_number = -1;
|
|
status->data_sent = 0;
|
|
status->data_received = 0;
|
|
}
|
|
|
|
// make sure libray is initialized
|
|
retval = __offload_init_library();
|
|
|
|
// OFFLOAD_TIMER_INIT must follow call to __offload_init_library
|
|
OffloadHostTimerData * timer_data = OFFLOAD_TIMER_INIT(file, line);
|
|
|
|
OFFLOAD_TIMER_START(timer_data, c_offload_host_total_offload);
|
|
|
|
OFFLOAD_TIMER_START(timer_data, c_offload_host_initialize);
|
|
|
|
// initialize all devices is init_type is on_offload_all
|
|
if (retval && __offload_init_type == c_init_on_offload_all) {
|
|
for (int i = 0; i < mic_engines_total; i++) {
|
|
mic_engines[i].init();
|
|
}
|
|
}
|
|
OFFLOAD_TIMER_STOP(timer_data, c_offload_host_initialize);
|
|
|
|
OFFLOAD_TIMER_START(timer_data, c_offload_host_target_acquire);
|
|
|
|
if (target_type == TARGET_HOST) {
|
|
// Host always available
|
|
retval = true;
|
|
}
|
|
else if (target_type == TARGET_MIC) {
|
|
if (target_number >= -1) {
|
|
if (retval) {
|
|
if (target_number >= 0) {
|
|
// User provided the device number
|
|
target_number = target_number % mic_engines_total;
|
|
}
|
|
else {
|
|
// use device 0
|
|
target_number = 0;
|
|
}
|
|
|
|
// reserve device in ORSL
|
|
if (is_optional) {
|
|
if (!ORSL::try_reserve(target_number)) {
|
|
target_number = -1;
|
|
}
|
|
}
|
|
else {
|
|
if (!ORSL::reserve(target_number)) {
|
|
target_number = -1;
|
|
}
|
|
}
|
|
|
|
// initialize device
|
|
if (target_number >= 0 &&
|
|
__offload_init_type == c_init_on_offload) {
|
|
OFFLOAD_TIMER_START(timer_data, c_offload_host_initialize);
|
|
mic_engines[target_number].init();
|
|
OFFLOAD_TIMER_STOP(timer_data, c_offload_host_initialize);
|
|
}
|
|
}
|
|
else {
|
|
// fallback to CPU
|
|
target_number = -1;
|
|
}
|
|
|
|
if (target_number < 0 || !retval) {
|
|
if (!is_optional && status == 0) {
|
|
LIBOFFLOAD_ERROR(c_device_is_not_available);
|
|
exit(1);
|
|
}
|
|
|
|
retval = false;
|
|
}
|
|
}
|
|
else {
|
|
LIBOFFLOAD_ERROR(c_invalid_device_number);
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
if (retval) {
|
|
ofld = new OffloadDescriptor(target_number, status,
|
|
!is_optional, false, timer_data);
|
|
OFFLOAD_TIMER_HOST_MIC_NUM(timer_data, target_number);
|
|
Offload_Report_Prolog(timer_data);
|
|
OFFLOAD_DEBUG_TRACE_1(2, timer_data->offload_number, c_offload_start,
|
|
"Starting offload: target_type = %d, "
|
|
"number = %d, is_optional = %d\n",
|
|
target_type, target_number, is_optional);
|
|
|
|
OFFLOAD_TIMER_STOP(timer_data, c_offload_host_target_acquire);
|
|
}
|
|
else {
|
|
ofld = NULL;
|
|
|
|
OFFLOAD_TIMER_STOP(timer_data, c_offload_host_target_acquire);
|
|
OFFLOAD_TIMER_STOP(timer_data, c_offload_host_total_offload);
|
|
offload_report_free_data(timer_data);
|
|
}
|
|
|
|
return ofld;
|
|
}
|
|
|
|
// This routine is called for OpenMP4.5 offload calls
|
|
// OpenMP 4.5 offload is always optional.
|
|
extern "C" OFFLOAD OFFLOAD_TARGET_ACQUIRE1(
|
|
const int* device_num,
|
|
const char* file,
|
|
uint64_t line
|
|
)
|
|
{
|
|
int target_number;
|
|
|
|
// make sure libray is initialized and at least one device is available
|
|
if (!__offload_init_library()) {
|
|
OFFLOAD_DEBUG_TRACE(2, "No device available, fall back to host\n");
|
|
return NULL;
|
|
}
|
|
|
|
// OFFLOAD_TIMER_INIT must follow call to __offload_init_library
|
|
|
|
OffloadHostTimerData * timer_data = OFFLOAD_TIMER_INIT(file, line);
|
|
|
|
OFFLOAD_TIMER_START(timer_data, c_offload_host_total_offload);
|
|
|
|
OFFLOAD_TIMER_START(timer_data, c_offload_host_initialize);
|
|
|
|
if (__offload_init_type == c_init_on_offload_all) {
|
|
for (int i = 0; i < mic_engines_total; i++) {
|
|
mic_engines[i].init();
|
|
}
|
|
}
|
|
|
|
OFFLOAD_TIMER_STOP(timer_data, c_offload_host_initialize);
|
|
|
|
OFFLOAD_TIMER_START(timer_data, c_offload_host_target_acquire);
|
|
|
|
// use default device number if it is not provided
|
|
if (device_num != 0) {
|
|
target_number = *device_num;
|
|
}
|
|
else {
|
|
target_number = __omp_device_num;
|
|
}
|
|
|
|
// device number should be a non-negative integer value
|
|
if (target_number < 0) {
|
|
LIBOFFLOAD_ERROR(c_omp_invalid_device_num);
|
|
exit(1);
|
|
}
|
|
|
|
// should we do this for OpenMP?
|
|
target_number %= mic_engines_total;
|
|
|
|
// reserve device in ORSL
|
|
if (!ORSL::reserve(target_number)) {
|
|
LIBOFFLOAD_ERROR(c_device_is_not_available);
|
|
exit(1);
|
|
}
|
|
|
|
// initialize device(s)
|
|
OFFLOAD_TIMER_START(timer_data, c_offload_host_initialize);
|
|
|
|
if (__offload_init_type == c_init_on_offload) {
|
|
mic_engines[target_number].init();
|
|
}
|
|
|
|
OFFLOAD_TIMER_STOP(timer_data, c_offload_host_initialize);
|
|
|
|
OFFLOAD ofld =
|
|
new OffloadDescriptor(target_number, 0, true, true, timer_data);
|
|
|
|
OFFLOAD_TIMER_HOST_MIC_NUM(timer_data, target_number);
|
|
|
|
Offload_Report_Prolog(timer_data);
|
|
|
|
OFFLOAD_DEBUG_TRACE_1(2, timer_data->offload_number, c_offload_start,
|
|
"Starting OpenMP offload, device = %d\n",
|
|
target_number);
|
|
|
|
OFFLOAD_TIMER_STOP(timer_data, c_offload_host_target_acquire);
|
|
|
|
return ofld;
|
|
}
|
|
|
|
extern "C" OFFLOAD OFFLOAD_TARGET_ACQUIRE2(
|
|
TARGET_TYPE target_type,
|
|
int target_number,
|
|
int is_optional,
|
|
_Offload_status* status,
|
|
const char* file,
|
|
uint64_t line,
|
|
const void** stream
|
|
)
|
|
{
|
|
bool retval;
|
|
OFFLOAD ofld;
|
|
|
|
// initialize status
|
|
if (status != 0) {
|
|
status->result = OFFLOAD_UNAVAILABLE;
|
|
status->device_number = -1;
|
|
status->data_sent = 0;
|
|
status->data_received = 0;
|
|
}
|
|
|
|
// make sure libray is initialized
|
|
retval = __offload_init_library();
|
|
// OFFLOAD_TIMER_INIT must follow call to __offload_init_library
|
|
OffloadHostTimerData * timer_data = OFFLOAD_TIMER_INIT(file, line);
|
|
|
|
OFFLOAD_TIMER_START(timer_data, c_offload_host_total_offload);
|
|
|
|
OFFLOAD_TIMER_START(timer_data, c_offload_host_initialize);
|
|
|
|
// initalize all devices if init_type is on_offload_all
|
|
if (retval && __offload_init_type == c_init_on_offload_all) {
|
|
for (int i = 0; i < mic_engines_total; i++) {
|
|
mic_engines[i].init();
|
|
}
|
|
}
|
|
OFFLOAD_TIMER_STOP(timer_data, c_offload_host_initialize);
|
|
|
|
OFFLOAD_TIMER_START(timer_data, c_offload_host_target_acquire);
|
|
|
|
if (target_type == TARGET_HOST) {
|
|
// Host always available
|
|
retval = true;
|
|
}
|
|
else if (target_type == TARGET_MIC) {
|
|
_Offload_stream handle = *(reinterpret_cast<_Offload_stream*>(stream));
|
|
Stream * stream = handle ? Stream::find_stream(handle, false) : NULL;
|
|
if (target_number >= -1) {
|
|
if (retval) {
|
|
// device number is defined by stream
|
|
if (stream) {
|
|
target_number = stream->get_device();
|
|
target_number = target_number % mic_engines_total;
|
|
}
|
|
|
|
// reserve device in ORSL
|
|
if (target_number != -1) {
|
|
if (is_optional) {
|
|
if (!ORSL::try_reserve(target_number)) {
|
|
target_number = -1;
|
|
}
|
|
}
|
|
else {
|
|
if (!ORSL::reserve(target_number)) {
|
|
target_number = -1;
|
|
}
|
|
}
|
|
}
|
|
|
|
// initialize device
|
|
if (target_number >= 0 &&
|
|
__offload_init_type == c_init_on_offload) {
|
|
OFFLOAD_TIMER_START(timer_data, c_offload_host_initialize);
|
|
mic_engines[target_number].init();
|
|
OFFLOAD_TIMER_STOP(timer_data, c_offload_host_initialize);
|
|
}
|
|
}
|
|
else {
|
|
// fallback to CPU
|
|
target_number = -1;
|
|
}
|
|
if (!(target_number == -1 && handle == 0)) {
|
|
if (target_number < 0 || !retval) {
|
|
if (!is_optional && status == 0) {
|
|
LIBOFFLOAD_ERROR(c_device_is_not_available);
|
|
exit(1);
|
|
}
|
|
|
|
retval = false;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
LIBOFFLOAD_ERROR(c_invalid_device_number);
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
if (retval) {
|
|
ofld = new OffloadDescriptor(target_number, status,
|
|
!is_optional, false, timer_data);
|
|
OFFLOAD_TIMER_HOST_MIC_NUM(timer_data, target_number);
|
|
Offload_Report_Prolog(timer_data);
|
|
OFFLOAD_DEBUG_TRACE_1(2, timer_data->offload_number, c_offload_start,
|
|
"Starting offload: target_type = %d, "
|
|
"number = %d, is_optional = %d\n",
|
|
target_type, target_number, is_optional);
|
|
|
|
OFFLOAD_TIMER_STOP(timer_data, c_offload_host_target_acquire);
|
|
}
|
|
else {
|
|
ofld = NULL;
|
|
|
|
OFFLOAD_TIMER_STOP(timer_data, c_offload_host_target_acquire);
|
|
OFFLOAD_TIMER_STOP(timer_data, c_offload_host_total_offload);
|
|
offload_report_free_data(timer_data);
|
|
}
|
|
|
|
return ofld;
|
|
}
|
|
|
|
static int offload_offload_wrap(
|
|
OFFLOAD ofld,
|
|
const char *name,
|
|
int is_empty,
|
|
int num_vars,
|
|
VarDesc *vars,
|
|
VarDesc2 *vars2,
|
|
int num_waits,
|
|
const void **waits,
|
|
const void **signal,
|
|
int entry_id,
|
|
const void *stack_addr,
|
|
OffloadFlags offload_flags
|
|
)
|
|
{
|
|
if (signal) {
|
|
ofld->set_signal(*signal);
|
|
}
|
|
|
|
bool ret = ofld->offload(name, is_empty, vars, vars2, num_vars,
|
|
waits, num_waits, signal, entry_id,
|
|
stack_addr, offload_flags);
|
|
if (!ret || (signal == 0 && ofld->get_stream() == 0 &&
|
|
!offload_flags.bits.omp_async)) {
|
|
delete ofld;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
extern "C" int OFFLOAD_OFFLOAD1(
|
|
OFFLOAD ofld,
|
|
const char *name,
|
|
int is_empty,
|
|
int num_vars,
|
|
VarDesc *vars,
|
|
VarDesc2 *vars2,
|
|
int num_waits,
|
|
const void **waits,
|
|
const void **signal
|
|
)
|
|
{
|
|
return offload_offload_wrap(ofld, name, is_empty,
|
|
num_vars, vars, vars2,
|
|
num_waits, waits,
|
|
signal, 0, NULL, {0});
|
|
}
|
|
|
|
extern "C" int OFFLOAD_OFFLOAD2(
|
|
OFFLOAD ofld,
|
|
const char *name,
|
|
int is_empty,
|
|
int num_vars,
|
|
VarDesc *vars,
|
|
VarDesc2 *vars2,
|
|
int num_waits,
|
|
const void** waits,
|
|
const void** signal,
|
|
int entry_id,
|
|
const void *stack_addr
|
|
)
|
|
{
|
|
return offload_offload_wrap(ofld, name, is_empty,
|
|
num_vars, vars, vars2,
|
|
num_waits, waits,
|
|
signal, entry_id, stack_addr, {0});
|
|
}
|
|
|
|
extern "C" int OFFLOAD_OFFLOAD3(
|
|
OFFLOAD ofld,
|
|
const char *name,
|
|
int is_empty,
|
|
int num_vars,
|
|
VarDesc *vars,
|
|
VarDesc2 *vars2,
|
|
int num_waits,
|
|
const void** waits,
|
|
const void** signal,
|
|
int entry_id,
|
|
const void *stack_addr,
|
|
OffloadFlags offload_flags,
|
|
const void** stream
|
|
)
|
|
{
|
|
// 1. if the source is compiled with -traceback then stream is 0
|
|
// 2. if offload has a stream clause then stream is address of stream value
|
|
if (stream) {
|
|
ofld->set_stream(*(reinterpret_cast<_Offload_stream *>(stream)));
|
|
}
|
|
|
|
return offload_offload_wrap(ofld, name, is_empty,
|
|
num_vars, vars, vars2,
|
|
num_waits, waits,
|
|
signal, entry_id, stack_addr, offload_flags);
|
|
}
|
|
|
|
extern "C" int OFFLOAD_OFFLOAD(
|
|
OFFLOAD ofld,
|
|
const char *name,
|
|
int is_empty,
|
|
int num_vars,
|
|
VarDesc *vars,
|
|
VarDesc2 *vars2,
|
|
int num_waits,
|
|
const void **waits,
|
|
const void *signal,
|
|
int entry_id,
|
|
const void *stack_addr
|
|
)
|
|
{
|
|
// signal is passed by reference now
|
|
const void **signal_new = (signal != 0) ? &signal : 0;
|
|
const void **waits_new = 0;
|
|
int num_waits_new = 0;
|
|
|
|
// remove NULL values from the list of signals to wait for
|
|
if (num_waits > 0) {
|
|
waits_new = (const void**) alloca(sizeof(void*) * num_waits);
|
|
for (int i = 0; i < num_waits; i++) {
|
|
if (waits[i] != 0) {
|
|
waits_new[num_waits_new++] = waits[i];
|
|
}
|
|
}
|
|
}
|
|
|
|
return OFFLOAD_OFFLOAD1(ofld, name, is_empty,
|
|
num_vars, vars, vars2,
|
|
num_waits_new, waits_new,
|
|
signal_new);
|
|
}
|
|
|
|
extern "C" int OFFLOAD_CALL_COUNT()
|
|
{
|
|
offload_call_count++;
|
|
return offload_call_count;
|
|
}
|