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aaff4976d2bc6078169a6d0984572335a0b7cb14
rocm-systems/source/lib/rocprofiler-sdk/hsa/queue.cpp
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Jonathan R. Madsen aaff4976d2 Kernel Tracing Fix (#439) 
* Update lib/rocprofiler-sdk/hsa/queue.cpp

- switch using the kernel_pkt.kernel_dispatch.completion_signal instead of interrupt signal for getting the dispatch time

* Update tests/kernel-tracing/validate.py

- add verification of total runtime collected in test_timestamps
  - the sum of the runtime of all the kernels in reproducible-runtime should be ~1 sec +/- 10%

* Remove include/rocprofiler-sdk/rocprofiler_plugin.h

* Update CI workflow

- update actions/cache@v3 -> v4
- actions/cache/save@v3 -> v4
- thollander/actions-comment-pull-request@v2 -> v2.4.3

* Update pytest.ini

- change default options to one that is more verbose

* Update tests/kernel-tracing/CMakeLists.txt

- skip test_total_runtime when Address or Thread Sanitizer enabled
  - overhead skews the results

* Update tests/kernel-tracing/validate.py

- separate test_total_runtime test
2024-01-30 14:52:17 -06:00

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// MIT License
//
/* Copyright (c) 2022 Advanced Micro Devices, Inc.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE. */
#include "lib/rocprofiler-sdk/hsa/queue.hpp"
#include "lib/common/utility.hpp"
#include "lib/rocprofiler-sdk/buffer.hpp"
#include "lib/rocprofiler-sdk/context/context.hpp"
#include "lib/rocprofiler-sdk/hsa/code_object.hpp"
#include "lib/rocprofiler-sdk/hsa/hsa.hpp"
#include <glog/logging.h>
#include <hsa/hsa.h>
#include <hsa/hsa_ext_amd.h>
#include <rocprofiler-sdk/fwd.h>
#include <atomic>
#include <chrono>
#include <thread>
// static assert for rocprofiler_packet ABI compatibility
static_assert(sizeof(hsa_ext_amd_aql_pm4_packet_t) == sizeof(hsa_kernel_dispatch_packet_t),
"unexpected ABI incompatibility");
static_assert(sizeof(hsa_ext_amd_aql_pm4_packet_t) == sizeof(hsa_barrier_and_packet_t),
"unexpected ABI incompatibility");
static_assert(sizeof(hsa_ext_amd_aql_pm4_packet_t) == sizeof(hsa_barrier_or_packet_t),
"unexpected ABI incompatibility");
static_assert(offsetof(hsa_ext_amd_aql_pm4_packet_t, completion_signal) ==
offsetof(hsa_kernel_dispatch_packet_t, completion_signal),
"unexpected ABI incompatibility");
static_assert(offsetof(hsa_ext_amd_aql_pm4_packet_t, completion_signal) ==
offsetof(hsa_barrier_and_packet_t, completion_signal),
"unexpected ABI incompatibility");
static_assert(offsetof(hsa_ext_amd_aql_pm4_packet_t, completion_signal) ==
offsetof(hsa_barrier_or_packet_t, completion_signal),
"unexpected ABI incompatibility");
#if defined(ROCPROFILER_CI)
# define ROCP_CI_LOG_IF(NON_CI_LEVEL, ...) LOG_IF(FATAL, __VA_ARGS__)
# define ROCP_CI_LOG(NON_CI_LEVEL, ...) LOG(FATAL)
#else
# define ROCP_CI_LOG_IF(NON_CI_LEVEL, ...) LOG_IF(NON_CI_LEVEL, __VA_ARGS__)
# define ROCP_CI_LOG(NON_CI_LEVEL, ...) LOG(NON_CI_LEVEL)
#endif
namespace rocprofiler
{
namespace hsa
{
namespace
{
bool
context_filter(const context::context* ctx)
{
return (ctx->buffered_tracer &&
(ctx->buffered_tracer->domains(ROCPROFILER_BUFFER_TRACING_KERNEL_DISPATCH)));
}
bool
AsyncSignalHandler(hsa_signal_value_t /*signal_v*/, void* data)
{
// LOG(ERROR) << "signal value is " << signal_v;
if(!data) return true;
auto& queue_info_session = *static_cast<Queue::queue_info_session_t*>(data);
// we need to decrement this reference count at the end of the functions
auto* _corr_id = queue_info_session.correlation_id;
// get the contexts that were active when the signal was created
const auto& ctxs = queue_info_session.contexts;
if(!ctxs.empty())
{
// only do the following work if there are contexts that require this info
const auto* _rocp_agent = queue_info_session.rocp_agent;
auto _hsa_agent = queue_info_session.hsa_agent;
auto _queue_id = queue_info_session.queue_id;
auto _signal = queue_info_session.kernel_pkt.kernel_dispatch.completion_signal;
auto _kern_id = queue_info_session.kernel_id;
const auto& _extern_corr_ids = queue_info_session.extern_corr_ids;
auto dispatch_time = hsa_amd_profiling_dispatch_time_t{};
auto dispatch_time_status =
hsa::get_amd_ext_table()->hsa_amd_profiling_get_dispatch_time_fn(
_hsa_agent, _signal, &dispatch_time);
// if we encounter this in CI, it will cause test to fail
ROCP_CI_LOG_IF(
ERROR,
dispatch_time_status == HSA_STATUS_SUCCESS && dispatch_time.end < dispatch_time.start)
<< "hsa_amd_profiling_get_dispatch_time for kernel_id=" << _kern_id
<< " on rocprofiler_agent=" << _rocp_agent->id.handle
<< " returned dispatch times where the end time (" << dispatch_time.end
<< ") was less than the start time (" << dispatch_time.start << ")";
for(const auto* itr : ctxs)
{
auto* _buffer = buffer::get_buffer(
itr->buffered_tracer->buffer_data.at(ROCPROFILER_BUFFER_TRACING_KERNEL_DISPATCH));
// go ahead and create the correlation id value since we expect at least one of these
// domains will require it
auto _corr_id_v =
rocprofiler_correlation_id_t{.internal = 0, .external = context::null_user_data};
if(_corr_id)
{
_corr_id_v.internal = _corr_id->internal;
_corr_id_v.external = _extern_corr_ids.at(itr);
}
if(itr->buffered_tracer->domains(ROCPROFILER_BUFFER_TRACING_KERNEL_DISPATCH))
{
if(dispatch_time_status == HSA_STATUS_SUCCESS)
{
const auto& dispatch_packet = queue_info_session.kernel_pkt.kernel_dispatch;
auto record = rocprofiler_buffer_tracing_kernel_dispatch_record_t{
sizeof(rocprofiler_buffer_tracing_kernel_dispatch_record_t),
ROCPROFILER_BUFFER_TRACING_KERNEL_DISPATCH,
_corr_id_v,
dispatch_time.start,
dispatch_time.end,
_rocp_agent->id,
_queue_id,
_kern_id,
dispatch_packet.private_segment_size,
dispatch_packet.group_segment_size,
rocprofiler_dim3_t{dispatch_packet.workgroup_size_x,
dispatch_packet.workgroup_size_y,
dispatch_packet.workgroup_size_z},
rocprofiler_dim3_t{dispatch_packet.grid_size_x,
dispatch_packet.grid_size_y,
dispatch_packet.grid_size_z}};
CHECK_NOTNULL(_buffer)->emplace(ROCPROFILER_BUFFER_CATEGORY_TRACING,
ROCPROFILER_BUFFER_TRACING_KERNEL_DISPATCH,
record);
}
}
}
}
// Calls our internal callbacks to callers who need to be notified post
// kernel execution.
queue_info_session.queue.signal_callback([&](const auto& map) {
for(const auto& [client_id, cb_pair] : map)
{
// If this is the client that gave us the AQLPacket,
// return it to that client otherwise notify.
if(queue_info_session.inst_pkt_id == client_id)
{
cb_pair.second(queue_info_session.queue,
client_id,
queue_info_session.kernel_pkt,
queue_info_session,
std::move(queue_info_session.inst_pkt));
}
else
{
cb_pair.second(queue_info_session.queue,
client_id,
queue_info_session.kernel_pkt,
queue_info_session,
nullptr);
}
}
});
// Delete signals and packets, signal we have completed.
if(queue_info_session.interrupt_signal.handle != 0u)
{
hsa::get_core_table()->hsa_signal_destroy_fn(queue_info_session.interrupt_signal);
}
if(queue_info_session.kernel_pkt.ext_amd_aql_pm4.completion_signal.handle != 0u)
{
hsa::get_core_table()->hsa_signal_destroy_fn(
queue_info_session.kernel_pkt.ext_amd_aql_pm4.completion_signal);
}
if(_corr_id)
{
LOG_IF(FATAL, _corr_id->ref_count.load() == 0)
<< "reference counter for correlation id " << _corr_id->internal << " from thread "
<< _corr_id->thread_idx << " has no reference count";
_corr_id->ref_count.fetch_sub(1);
}
queue_info_session.queue.async_complete();
delete static_cast<Queue::queue_info_session_t*>(data);
return false;
}
template <typename Integral = uint64_t>
constexpr Integral
bit_mask(int first, int last)
{
assert(last >= first && "Error: hsa_support::bit_mask -> invalid argument");
size_t num_bits = last - first + 1;
return ((num_bits >= sizeof(Integral) * 8) ? ~Integral{0}
/* num_bits exceed the size of Integral */
: ((Integral{1} << num_bits) - 1))
<< first;
}
/* Extract bits [last:first] from t. */
template <typename Integral>
constexpr Integral
bit_extract(Integral x, int first, int last)
{
return (x >> first) & bit_mask<Integral>(0, last - first);
}
/**
* @brief This function is a queue write interceptor. It intercepts the
* packet write function. Creates an instance of packet class with the raw
* pointer. invoke the populate function of the packet class which returns a
* pointer to the packet. This packet is written into the queue by this
* interceptor by invoking the writer function.
*/
void
WriteInterceptor(const void* packets,
uint64_t pkt_count,
uint64_t,
void* data,
hsa_amd_queue_intercept_packet_writer writer)
{
using context_array_t = Queue::context_array_t;
auto&& AddVendorSpecificPacket = [](hsa_ext_amd_aql_pm4_packet_t _packet,
hsa_signal_t _signal,
std::vector<rocprofiler_packet>& _packets) {
_packets.emplace_back(_packet).ext_amd_aql_pm4.completion_signal = _signal;
};
auto&& CreateBarrierPacket = [](hsa_signal_t _signal,
std::vector<rocprofiler_packet>& _packets) {
hsa_barrier_and_packet_t barrier{};
barrier.header = HSA_PACKET_TYPE_BARRIER_AND << HSA_PACKET_HEADER_TYPE;
barrier.dep_signal[0] = _signal;
_packets.emplace_back(barrier);
};
LOG_IF(FATAL, data == nullptr) << "WriteInterceptor was not passed a pointer to the queue";
auto ctxs = context_array_t{};
context::get_active_contexts(ctxs, context_filter);
auto& queue = *static_cast<Queue*>(data);
// We have no packets or no one who needs to be notified, do nothing.
if(pkt_count == 0 || (queue.get_notifiers() == 0 && ctxs.empty()))
{
writer(packets, pkt_count);
return;
}
auto thr_id = common::get_tid();
auto* corr_id = context::get_latest_correlation_id();
// use thread-local value to reuse allocation
static thread_local auto extern_corr_ids_tl =
Queue::queue_info_session_t::external_corr_id_map_t{};
// increase the reference count to denote that this correlation id is being used in a kernel
if(corr_id)
{
extern_corr_ids_tl.clear(); // clear it so that it only contains the current contexts
extern_corr_ids_tl.reserve(ctxs.size()); // reserve for performance
for(const auto* ctx : ctxs)
extern_corr_ids_tl.emplace(ctx,
ctx->correlation_tracer.external_correlator.get(thr_id));
corr_id->ref_count.fetch_add(1);
}
// move to local variable
auto extern_corr_ids = std::move(extern_corr_ids_tl);
// hsa_ext_amd_aql_pm4_packet_t
const auto* packets_arr = static_cast<const rocprofiler_packet*>(packets);
auto transformed_packets = std::vector<rocprofiler_packet>{};
// Searching accross all the packets given during this write
for(size_t i = 0; i < pkt_count; ++i)
{
const auto& original_packet = packets_arr[i].kernel_dispatch;
auto packet_type = bit_extract(original_packet.header,
HSA_PACKET_HEADER_TYPE,
HSA_PACKET_HEADER_TYPE + HSA_PACKET_HEADER_WIDTH_TYPE - 1);
if(packet_type != HSA_PACKET_TYPE_KERNEL_DISPATCH)
{
transformed_packets.emplace_back(packets_arr[i]);
continue;
}
// Copy kernel pkt, copy is to allow for signal to be modified
rocprofiler_packet kernel_pkt = packets_arr[i];
uint64_t kernel_id = get_kernel_id(kernel_pkt.kernel_dispatch.kernel_object);
queue.create_signal(HSA_AMD_SIGNAL_AMD_GPU_ONLY,
&kernel_pkt.ext_amd_aql_pm4.completion_signal);
// Stores the instrumentation pkt (i.e. AQL packets for counter collection)
// along with an ID of the client we got the packet from (this will be returned via
// completed_cb_t)
ClientID inst_pkt_id = -1;
std::unique_ptr<AQLPacket> inst_pkt;
// Signal callbacks that a kernel_pkt is being enqueued
queue.signal_callback([&](const auto& map) {
for(const auto& [client_id, cb_pair] : map)
{
if(auto maybe_pkt = cb_pair.first(
queue, client_id, kernel_pkt, kernel_id, extern_corr_ids, corr_id))
{
LOG_IF(FATAL, inst_pkt)
<< "We do not support two injections into the HSA queue";
inst_pkt = std::move(maybe_pkt);
inst_pkt_id = client_id;
}
}
});
constexpr auto dummy_signal = hsa_signal_t{.handle = 0};
// Write instrumentation start packet (if one exists)
if(inst_pkt && !inst_pkt->empty)
{
inst_pkt->start.header = HSA_PACKET_TYPE_VENDOR_SPECIFIC << HSA_PACKET_HEADER_TYPE;
AddVendorSpecificPacket(inst_pkt->start, dummy_signal, transformed_packets);
CreateBarrierPacket(inst_pkt->start.completion_signal, transformed_packets);
}
transformed_packets.emplace_back(kernel_pkt);
// Make a copy of the original packet, adding its signal to a barrier
// packet and create a new signal for it to get timestamps
if(original_packet.completion_signal.handle != 0u)
{
hsa_barrier_and_packet_t barrier{};
barrier.header = HSA_PACKET_TYPE_BARRIER_AND << HSA_PACKET_HEADER_TYPE;
barrier.completion_signal = original_packet.completion_signal;
transformed_packets.emplace_back(barrier);
}
hsa_signal_t interrupt_signal{};
// Adding a barrier packet with the original packet's completion signal.
queue.create_signal(0, &interrupt_signal);
if(inst_pkt && !inst_pkt->empty)
{
inst_pkt->stop.header = HSA_PACKET_TYPE_VENDOR_SPECIFIC << HSA_PACKET_HEADER_TYPE;
AddVendorSpecificPacket(inst_pkt->stop, dummy_signal, transformed_packets);
inst_pkt->read.header = HSA_PACKET_TYPE_VENDOR_SPECIFIC << HSA_PACKET_HEADER_TYPE;
AddVendorSpecificPacket(inst_pkt->read, interrupt_signal, transformed_packets);
// Added Interrupt Signal with barrier and provided handler for it
CreateBarrierPacket(interrupt_signal, transformed_packets);
}
else
{
hsa_barrier_and_packet_t barrier{};
barrier.header = HSA_PACKET_TYPE_BARRIER_AND << HSA_PACKET_HEADER_TYPE;
barrier.completion_signal = interrupt_signal;
transformed_packets.emplace_back(barrier);
}
LOG_IF(FATAL, packet_type != HSA_PACKET_TYPE_KERNEL_DISPATCH)
<< "get_kernel_id below might need to be updated";
// Enqueue the signal into the handler. Will call completed_cb when
// signal completes.
queue.async_started();
queue.signal_async_handler(
interrupt_signal,
new Queue::queue_info_session_t{.queue = queue,
.inst_pkt = std::move(inst_pkt),
.inst_pkt_id = inst_pkt_id,
.interrupt_signal = interrupt_signal,
.tid = thr_id,
.kernel_id = kernel_id,
.queue_id = queue.get_id(),
.hsa_agent = queue.get_agent().get_hsa_agent(),
.rocp_agent = queue.get_agent().get_rocp_agent(),
.correlation_id = corr_id,
.kernel_pkt = kernel_pkt,
.contexts = ctxs,
.extern_corr_ids = extern_corr_ids});
}
writer(transformed_packets.data(), transformed_packets.size());
}
} // namespace
Queue::~Queue() { sync(); }
void
Queue::signal_async_handler(const hsa_signal_t& signal, Queue::queue_info_session_t* data) const
{
hsa_status_t status = _ext_api.hsa_amd_signal_async_handler_fn(
signal, HSA_SIGNAL_CONDITION_EQ, 0, AsyncSignalHandler, static_cast<void*>(data));
LOG_IF(FATAL, status != HSA_STATUS_SUCCESS && status != HSA_STATUS_INFO_BREAK)
<< "Error: hsa_amd_signal_async_handler failed";
}
void
Queue::create_signal(uint32_t attribute, hsa_signal_t* signal) const
{
hsa_status_t status = _ext_api.hsa_amd_signal_create_fn(1, 0, nullptr, attribute, signal);
LOG_IF(FATAL, status != HSA_STATUS_SUCCESS && status != HSA_STATUS_INFO_BREAK)
<< "Error: hsa_amd_signal_create failed";
}
Queue::Queue(const AgentCache& agent,
uint32_t size,
hsa_queue_type32_t type,
void (*callback)(hsa_status_t status, hsa_queue_t* source, void* data),
void* data,
uint32_t private_segment_size,
uint32_t group_segment_size,
CoreApiTable core_api,
AmdExtTable ext_api,
hsa_queue_t** queue)
: _core_api(core_api)
, _ext_api(ext_api)
, _agent(agent)
{
LOG_IF(FATAL,
_ext_api.hsa_amd_queue_intercept_create_fn(_agent.get_hsa_agent(),
size,
type,
callback,
data,
private_segment_size,
group_segment_size,
&_intercept_queue) != HSA_STATUS_SUCCESS)
<< "Could not create intercept queue";
LOG_IF(FATAL,
_ext_api.hsa_amd_profiling_set_profiler_enabled_fn(_intercept_queue, true) !=
HSA_STATUS_SUCCESS)
<< "Could not setup intercept profiler";
LOG_IF(FATAL,
_ext_api.hsa_amd_queue_intercept_register_fn(_intercept_queue, WriteInterceptor, this))
<< "Could not register interceptor";
*queue = _intercept_queue;
}
void
Queue::sync() const
{
// Potentially replace with condition variable at some point
// but performance may not matter here.
constexpr auto max_wait_time = std::chrono::milliseconds{1000};
constexpr auto query_interval = std::chrono::milliseconds{10};
auto _orig_active = _active_async_packets.load(std::memory_order_relaxed);
auto _curr_active = _orig_active;
auto inactive = common::yield(
[this, &_curr_active]() {
return ((_curr_active = _active_async_packets.load(std::memory_order_relaxed)) == 0);
},
max_wait_time,
query_interval);
LOG_IF(WARNING, !inactive)
<< "rocprofiler-sdk Queue (instance=" << this << ") abandoned waiting for " << _orig_active
<< " async completion callbacks after " << max_wait_time.count() << " msecs. There were "
<< _curr_active << " async completion callbacks which were not delivered at that time.";
}
void
Queue::register_callback(ClientID id, queue_cb_t enqueue_cb, completed_cb_t complete_cb)
{
_callbacks.wlock([&](auto& map) {
LOG_IF(FATAL, rocprofiler::common::get_val(map, id)) << "ID already exists!";
_notifiers++;
map[id] = std::make_pair(enqueue_cb, complete_cb);
});
}
void
Queue::remove_callback(ClientID id)
{
_callbacks.wlock([&](auto& map) {
if(map.erase(id) == 1) _notifiers--;
});
}
} // namespace hsa
} // namespace rocprofiler
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