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[MPIX Stream] workq-based MPIX P2P Stream test failure
Hi!
I am currently testing out stream.cu and have the following output:
mpirun -l -np 2 -ppn 2 -genv MPIR_CVAR_CH4_ENABLE_STREAM_WORKQ=1 -genv MPIR_CVAR_GPU_HAS_WAIT_KERNEL=1 -genv MPIR_CVAR_ENABLE_GPU=1 -genv MPIR_CVAR_CH4_RESERVE_VCIS=1 -genv MPIR_CVAR_CH4_NUM_VCIS=2 ./stream -progress-thread
[0] [a100-11:1399809:0:1399809] ucp_worker.c:3063 Assertion `--worker->inprogress == 0' failed
[0] [a100-11:1399809:1:1399830] ucp_worker.c:3058 Assertion `worker->inprogress++ == 0' failed
[1] [a100-11:1399810:0:1399810] ucp_worker.c:3058 Assertion `worker->inprogress++ == 0' failed
[1] [a100-11:1399810:1:1399831] ucp_worker.c:3063 Assertion `--worker->inprogress == 0' failed
[1] [1762972281.903354] [a100-11:1399810:1] debug.c:1300 UCX WARN ucs_debug_disable_signal: signal 8 was not set in ucs
[1] [1762972281.903386] [a100-11:1399810:0] debug.c:1300 UCX WARN ucs_debug_disable_signal: signal 1 was not set in ucs
[1] [1762972281.903391] [a100-11:1399810:1] spinlock.c:29 UCX WARN ucs_recursive_spinlock_destroy() failed: busy
[0]
[0] /home/xu.3304/project/mpix-stream/mpich/modules/ucx/src/ucp/core/ucp_worker.c: [ ucp_worker_progress() ]
[0] ...
[1]
[1] /home/xu.3304/project/mpix-stream/mpich/modules/ucx/src/ucp/core/ucp_worker.c: [ ucp_worker_progress() ]
[1] ...
[0] 3055 UCP_WORKER_THREAD_CS_ENTER_CONDITIONAL(worker);
[0] 3056
[0] 3057 /* check that ucp_worker_progress is not called from within ucp_worker_progress */
[0] ==> 3058 ucs_assert(worker->inprogress++ == 0);
[0] 3059 count = uct_worker_progress(worker->uct);
[0] 3060 ucs_async_check_miss(&worker->async);
[0] 3061
[0]
[1] 3060 ucs_async_check_miss(&worker->async);
[1] 3061
[1] 3062 /* coverity[assert_side_effect] */
[1] ==> 3063 ucs_assert(--worker->inprogress == 0);
[1] 3064
[1] 3065 UCP_WORKER_THREAD_CS_EXIT_CONDITIONAL(worker);
[1] 3066
[1]
[0]
[0] /home/xu.3304/project/mpix-stream/mpich/modules/ucx/src/ucp/core/ucp_worker.c: [ ucp_worker_progress() ]
[0] ...
[0] 3060 ucs_async_check_miss(&worker->async);
[0] 3061
[0] 3062 /* coverity[assert_side_effect] */
[0] ==> 3063 ucs_assert(--worker->inprogress == 0);
[0] 3064
[0] 3065 UCP_WORKER_THREAD_CS_EXIT_CONDITIONAL(worker);
[0] 3066
[0]
[1]
[1] /home/xu.3304/project/mpix-stream/mpich/modules/ucx/src/ucp/core/ucp_worker.c: [ ucp_worker_progress() ]
[1] ...
[1] 3055 UCP_WORKER_THREAD_CS_ENTER_CONDITIONAL(worker);
[1] 3056
[1] 3057 /* check that ucp_worker_progress is not called from within ucp_worker_progress */
[1] ==> 3058 ucs_assert(worker->inprogress++ == 0);
[1] 3059 count = uct_worker_progress(worker->uct);
[1] 3060 ucs_async_check_miss(&worker->async);
[1] 3061
[1]
[0] ==== backtrace (tid:1399830) ====
[0] 0 0x00000000000664e8 ucp_worker_progress() /home/xu.3304/project/mpix-stream/mpich/modules/ucx/src/ucp/core/ucp_worker.c:3058
[0] 1 0x00000000004139cf MPIDI_progress_test.isra.0() init_async.c:0
[0] 2 0x0000000000414206 progress_fn() init_async.c:0
[0] 3 0x00000000004cd7d5 MPLI_thread_start() :0
[0] 4 0x00000000000081ca start_thread() ???:0
[0] 5 0x00000000000398d3 __GI___clone() :0
[0] =================================
[1] ==== backtrace (tid:1399831) ====
[1] 0 0x0000000000066528 ucp_worker_progress() /home/xu.3304/project/mpix-stream/mpich/modules/ucx/src/ucp/core/ucp_worker.c:3063
[1] 1 0x0000000000066528 ucp_worker_progress() /home/xu.3304/project/mpix-stream/mpich/modules/ucx/src/ucp/core/ucp_worker.c:3060
[1] 2 0x00000000004139cf MPIDI_progress_test.isra.0() init_async.c:0
[1] 3 0x0000000000414206 progress_fn() init_async.c:0
[1] 4 0x00000000004cd7d5 MPLI_thread_start() :0
[1] 5 0x00000000000081ca start_thread() ???:0
[1] 6 0x00000000000398d3 __GI___clone() :0
[1] =================================
===================================================================================
= BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
= PID 1399809 RUNNING AT a100-11
= EXIT CODE: 134
= CLEANING UP REMAINING PROCESSES
= YOU CAN IGNORE THE BELOW CLEANUP MESSAGES
===================================================================================
YOUR APPLICATION TERMINATED WITH THE EXIT STRING: Aborted (signal 6)
This typically refers to a problem with your application.
Please see the FAQ page for debugging suggestions
It does seem like two MPIDI_progres_test is calling into the ucx worker which was created using UCS_THREAD_MODE_SERIALIZED and doesn't support concurrent access.
I suspected that the main thread is still inside MPIX_Stream_comm_create while the progress thread is already proceeding, so I moved the MPIX_Start_progress_thread to after MPIX_Stream_comm_create
MPI_Comm stream_comm;
MPIX_Stream_comm_create(MPI_COMM_WORLD, mpi_stream, &stream_comm);
if (need_progress_thread) {
MPIX_Start_progress_thread(mpi_stream);
}
After the change, the ucp worker error went away but the process got hang during cudaFree()
#0 0x000014778a3802ae in ?? () from /lib64/libcuda.so.1
#1 0x000014778a13e183 in ?? () from /lib64/libcuda.so.1
#2 0x000014778a17cdeb in ?? () from /lib64/libcuda.so.1
#3 0x000014778aebb8f7 in ?? () from /lib64/libcuda.so.1
#4 0x000014778aebbd45 in ?? () from /lib64/libcuda.so.1
#5 0x000014778a14a9f4 in ?? () from /lib64/libcuda.so.1
#6 0x000014778aeb9f09 in ?? () from /lib64/libcuda.so.1
#7 0x000014778a0e97cb in ?? () from /lib64/libcuda.so.1
#8 0x000014778a25f437 in ?? () from /lib64/libcuda.so.1
#9 0x000014778a24c300 in cuMemFree_v2 () from /lib64/libcuda.so.1
#10 0x00001477331cb07c in ucm_cuMemFree_v2 (arg0=22502560497664) at cudamem.c:200
#11 0x000014779074b2a5 in ?? () from /opt/cuda/12.6/lib64/libcudart.so.12
#12 0x000014779078bbf8 in cudaFree () from /opt/cuda/12.6/lib64/libcudart.so.12
#13 0x0000000000401dc8 in main ()
I have no clue how to proceed next to make this work. Maybe something related to ucx intercepting cuda memory instructions?
MPICH config:
MPICH Version: 5.0.0b1
MPICH Release date: unreleased development copy
MPICH ABI: 0:0:0
MPICH Device: ch4:ucx
MPICH configure: --prefix=/home/xu.3304/project/mpix-stream/install/mpich-2e32b90-cuda12.6 --disable-fortran --disable-f77 --enable-cuda --with-cuda=/opt/cuda/12.6 --with-device=ch4:ucx --with-ucx=embedded CC=/opt/gcc/13.3.0/bin/gcc CXX=/opt/gcc/13.3.0/bin/g++ LDFLAGS=-lstdc++ CFLAGS=-I/opt/cuda/12.6/include
MPICH CC: /opt/gcc/13.3.0/bin/gcc -I/opt/cuda/12.6/include -O2
MPICH CXX: /opt/gcc/13.3.0/bin/g++ -O2
MPICH F77: /opt/gcc/13.3.0/bin/gfortran
MPICH FC: /opt/gcc/13.3.0/bin/gfortran
MPICH features: threadcomm
Run commands:
mpirun -l -np 2 -ppn 2 -genv MPIR_CVAR_CH4_ENABLE_STREAM_WORKQ=1 -genv MPIR_CVAR_GPU_HAS_WAIT_KERNEL=1 -genv MPIR_CVAR_ENABLE_GPU=1 -genv MPIR_CVAR_CH4_RESERVE_VCIS=1 -genv MPIR_CVAR_CH4_NUM_VCIS=2 ./stream -progress-thread
UCX config:
$ ./configure --disable-option-checking --prefix=/home/xu.3304/project/mpix-stream/install/mpich-2e32b90-cuda12.6 --disable-static --with-java=no --with-go=no --enable-embedded --disable-fortran --disable-f77 --enable-cuda --with-cuda=/opt/cuda/12.6 --with-device=ch4:ucx --with-ucx=embedded CC=/opt/gcc/13.3.0/bin/gcc CXX=/opt/gcc/13.3.0/bin/g++ LDFLAGS=-lstdc++ CFLAGS=-I/opt/cuda/12.6/include FC=/opt/gcc/13.3.0/bin/gfortran FCFLAGS= F77=/opt/gcc/13.3.0/bin/gfortran --cache-file=/dev/null --srcdir=.
configure: =========================================================
configure: UCX build configuration:
configure: Build prefix: /home/xu.3304/project/mpix-stream/install/mpich-2e32b90-cuda12.6
configure: Configuration dir: ${prefix}/etc/ucx
configure: CC: /opt/gcc/13.3.0/bin/gcc
configure: CXX: /opt/gcc/13.3.0/bin/g++
configure: CPPFLAGS: -DCPU_FLAGS="" -I${abs_top_srcdir}/src -I${abs_top_builddir} -I${abs_top_builddir}/src
configure: CFLAGS: -O3 -g -Wall -funwind-tables -Wframe-larger-than=8192 -Wno-missing-field-initializers -Wno-unused-parameter -Wno-unused-label -Wno-long-long -Wno-endif-labels -Wno-sign-compare -Wno-multichar -Wno-deprecated-declarations -Winvalid-pch -Wno-pointer-sign -Werror-implicit-function-declaration -Wno-format-zero-length -Wnested-externs -Wshadow -Werror=declaration-after-statement -I/opt/cuda/12.6/include
configure: CXXFLAGS: -O3 -g -Wall -funwind-tables -Wframe-larger-than=8192 -Wno-missing-field-initializers -Wno-unused-parameter -Wno-unused-label -Wno-long-long -Wno-endif-labels -Wno-sign-compare -Wno-multichar -Wno-deprecated-declarations -Winvalid-pch
configure: ASAN check: no
configure: Multi-thread: disabled
configure: MPI tests: disabled
configure: VFS support: yes
configure: Devel headers: no
configure: io_demo CUDA support: no
configure: Bindings: < >
configure: UCS modules: < fuse >
configure: UCT modules: < cuda ib rdmacm cma knem xpmem >
configure: CUDA modules: < gdrcopy >
configure: ROCM modules: < >
configure: IB modules: < mlx5 >
configure: UCM modules: < cuda >
configure: Perf modules: < cuda mad >
configure: =========================================================
