No examples working (ubuntu 19.01 and 18.01)

[tbarton16]

I can load the tai chi library, but all examples crash with [Taichi] version 0.5.3, cuda 10.1, commit 6fa3be84, python 3.6.7 n_objects= 6 n_springs= 11 [W 02/29/20 10:15:14.815] [taichi_llvm_context.cpp:module_from_bitcode_file@186] Bitcode loading error message: Invalid bitcode signature [E 02/29/20 10:15:14.815] [taichi_llvm_context.cpp:module_from_bitcode_file@188] Bitcode /home/theresa/.conda/envs/conda_env/lib/python3.6/site-packages/taichi/core/../lib/runtime_x64.bc load failure. [E 02/29/20 10:15:14.815] Received signal 6 (Aborted) On my 18.01 ubuntu install, it crashes with :`[Taichi version 0.5.2, cuda 10.1, commit 4d56959a] [E 02/28/20 17:16:09.152] Received signal 11 (Segmentation fault)

Taichi Compiler Stack Traceback /home/tbarton1/anaconda3/envs/py37/lib/python3.7/site-packages/taichi/core/../lib/taichi_core.so: taichi::signal_handler(int) /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20) [0x7fdb8e6abf20] /home/tbarton1/anaconda3/envs/py37/lib/python3.7/site-packages/taichi/core/../lib/taichi_core.so: taichi::GUI::create_window() /home/tbarton1/anaconda3/envs/py37/lib/python3.7/site-packages/taichi/core/../lib/taichi_core.so: taichi::GUI::GUI(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, int, int, bool) /home/tbarton1/anaconda3/envs/py37/lib/python3.7/site-packages/taichi/core/../lib/taichi_core.so(+0xcc6d8c) [0x7fdb6e8ded8c] /home/tbarton1/anaconda3/envs/py37/lib/python3.7/site-packages/taichi/core/../lib/taichi_core.so(+0xcc6c8f) [0x7fdb6e8dec8f] /home/tbarton1/anaconda3/envs/py37/lib/python3.7/site-packages/taichi/core/../lib/taichi_core.so(+0xb25504) [0x7fdb6e73d504] python3(_PyMethodDef_RawFastCallDict+0x24d) [0x55877c836afd] python3(_PyCFunction_FastCallDict+0x21) [0x55877c836c81] python3(_PyObject_Call_Prepend+0x63) [0x55877c835313] python3(PyObject_Call+0x6e) [0x55877c82706e] python3(+0xacc70) [0x55877c7acc70] python3(_PyObject_FastCallKeywords+0x128) [0x55877c8804e8] python3(_PyEval_EvalFrameDefault+0x5379) [0x55877c8d50b9] python3(_PyEval_EvalCodeWithName+0x2f9) [0x55877c814729] python3(_PyFunction_FastCallDict+0x400) [0x55877c815a90] python3(_PyObject_Call_Prepend+0x63) [0x55877c835313] python3(+0x17f72a) [0x55877c87f72a] python3(_PyObject_FastCallKeywords+0x128) [0x55877c8804e8] python3(_PyEval_EvalFrameDefault+0x5787) [0x55877c8d54c7] python3(_PyEval_EvalCodeWithName+0x2f9) [0x55877c814729] python3(PyEval_EvalCodeEx+0x44) [0x55877c815654] python3(PyEval_EvalCode+0x1c) [0x55877c81567c] python3(+0x22bcb4) [0x55877c92bcb4] python3(PyRun_FileExFlags+0xa1) [0x55877c936191] python3(PyRun_SimpleFileExFlags+0x1c3) [0x55877c936383] python3(+0x237475) [0x55877c937475] python3(_Py_UnixMain+0x3c) [0x55877c93759c] /lib/x86_64-linux-gnu/libc.so.6: __libc_start_main python3(+0x1dfb50) [0x55877c8dfb50] ` Have you guys seen either of these issues?

[tianjuxue]

I can load the tai chi library, but all examples crash with [Taichi] version 0.5.3, cuda 10.1, commit 6fa3be84, python 3.6.7 n_objects= 6 n_springs= 11 [W 02/29/20 10:15:14.815] [taichi_llvm_context.cpp:module_from_bitcode_file@186] Bitcode loading error message: Invalid bitcode signature [E 02/29/20 10:15:14.815] [taichi_llvm_context.cpp:module_from_bitcode_file@188] Bitcode /home/theresa/.conda/envs/conda_env/lib/python3.6/site-packages/taichi/core/../lib/runtime_x64.bc load failure. [E 02/29/20 10:15:14.815] Received signal 6 (Aborted) On my 18.01 ubuntu install, it crashes with :`[Taichi version 0.5.2, cuda 10.1, commit 4d56959a] [E 02/28/20 17:16:09.152] Received signal 11 (Segmentation fault)

* Taichi Compiler Stack Traceback *

/home/tbarton1/anaconda3/envs/py37/lib/python3.7/site-packages/taichi/core/../lib/taichi_core.so: taichi::signal_handler(int) /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20) [0x7fdb8e6abf20] /home/tbarton1/anaconda3/envs/py37/lib/python3.7/site-packages/taichi/core/../lib/taichi_core.so: taichi::GUI::create_window() /home/tbarton1/anaconda3/envs/py37/lib/python3.7/site-packages/taichi/core/../lib/taichi_core.so: taichi::GUI::GUI(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, int, int, bool) /home/tbarton1/anaconda3/envs/py37/lib/python3.7/site-packages/taichi/core/../lib/taichi_core.so(+0xcc6d8c) [0x7fdb6e8ded8c] /home/tbarton1/anaconda3/envs/py37/lib/python3.7/site-packages/taichi/core/../lib/taichi_core.so(+0xcc6c8f) [0x7fdb6e8dec8f] /home/tbarton1/anaconda3/envs/py37/lib/python3.7/site-packages/taichi/core/../lib/taichi_core.so(+0xb25504) [0x7fdb6e73d504] python3(_PyMethodDef_RawFastCallDict+0x24d) [0x55877c836afd] python3(_PyCFunction_FastCallDict+0x21) [0x55877c836c81] python3(_PyObject_Call_Prepend+0x63) [0x55877c835313] python3(PyObject_Call+0x6e) [0x55877c82706e] python3(+0xacc70) [0x55877c7acc70] python3(_PyObject_FastCallKeywords+0x128) [0x55877c8804e8] python3(_PyEval_EvalFrameDefault+0x5379) [0x55877c8d50b9] python3(_PyEval_EvalCodeWithName+0x2f9) [0x55877c814729] python3(_PyFunction_FastCallDict+0x400) [0x55877c815a90] python3(_PyObject_Call_Prepend+0x63) [0x55877c835313] python3(+0x17f72a) [0x55877c87f72a] python3(_PyObject_FastCallKeywords+0x128) [0x55877c8804e8] python3(_PyEval_EvalFrameDefault+0x5787) [0x55877c8d54c7] python3(_PyEval_EvalCodeWithName+0x2f9) [0x55877c814729] python3(PyEval_EvalCodeEx+0x44) [0x55877c815654] python3(PyEval_EvalCode+0x1c) [0x55877c81567c] python3(+0x22bcb4) [0x55877c92bcb4] python3(PyRun_FileExFlags+0xa1) [0x55877c936191] python3(PyRun_SimpleFileExFlags+0x1c3) [0x55877c936383] python3(+0x237475) [0x55877c937475] python3(_Py_UnixMain+0x3c) [0x55877c93759c] /lib/x86_64-linux-gnu/libc.so.6: __libc_start_main python3(+0x1dfb50) [0x55877c8dfb50] ` Have you guys seen either of these issues?

I'm having the same issue here.

[yuanming-hu]

Thanks for reporting. Let me take a look today.

[yuanming-hu]

Should be fixed in v0.5.6. The buildbots are currently working on compiling/releasing the new version. Please let me know if that resolves your issue. Thanks so much for reporting this.

[tbarton16]

@yuanming-hu I have confirmed the examples run on my 19.01 machine. Thanks!