hi, I wanted to give a quick update on the state of the implementation. Good news! I think there is not that much left to be done! I'm currently waiting for a bigger VM (already wrote an email to linux1@us.ibm.com, 2 days ago? They are maybe on holiday?) to translate the full project. There are approx. 20 Failing tests that are left (own-linux-s390x). All other pass on my virtual machine. They are mostly related to big endian issues. Here are some questions: 1) Generally I got the impression that there are some tests that do not consider endianess (e.g. micronumpy). I guess it is time to change them to handle this? What about PPC? Did those not come up there? 2) It seems that the gcc on the build bot is quite old? It can for instance not assemble the instruction LAY (load address), but the VM I got (gcc version 4.8.5 20150623 (Red Hat 4.8.5-4)) is able to. As soon as I can get my hands on a Debian machine that is configured similarly I can say more (end of Jan?). Cheers, Richard
Hi Richard, On Tue, Jan 19, 2016 at 12:12 PM, Richard Plangger <planrichi@gmail.com> wrote:
I must admit I did not try to run the whole test suite of PyPy on PPC; only the JIT's. Yes, it is expected to discover such small issues. I expect most of the issues to be in tests not written with that case in mind. A bientôt, Armin.
On Tue, Jan 19, 2016 at 6:12 AM, Richard Plangger <planrichi@gmail.com> wrote:
The default GCC on the buildbot is GCC 5.2 gcc version 5.2.1 20150911 (Debian 5.2.1-17) I just updated Binutils on the system in case something was out of date. I can try translating on the buildbot, if you wish. - David
It seems that I'm using old software on the vm. :) I kicked the build bot to see if the update has any effect. Some of the failing tests (on the buildbot only) are very severe, and it is hard to find out the cause if they do not fail on the development machine... We could try to start a translation, but I'm unsure if it will really work. Cheers, Richard On 01/19/2016 04:40 PM, David Edelsohn wrote:
Hi Richard, On Tue, Jan 19, 2016 at 4:47 PM, Richard Plangger <planrichi@gmail.com> wrote:
Note: at this point where a JIT backend is "mostly done", subtle bugs left in the JIT backend generate hard crashes that show up very rarely. I recommend that you use test_zll_stress_*.py in jit/backend/test/ --- and not just once. For example, leave them running repeatedly for 12 or 24 hours and be happy only if they pass successfully every time. These tests are good at figuring out such rare cases. A bientôt, Armin.
Debian apparently supports all z/Arch processors, so the toolchain defaults to much older processor model. For zEC12 and above, one must explicitly invoke GCC with -march=zEC12. I set CFLAGS and the translation is much happier. The s390x buildbot should explicitly use -march=zEC12. Thanks, David On Tue, Jan 19, 2016 at 10:47 AM, Richard Plangger <planrichi@gmail.com> wrote:
Translation got pretty far, until ... ***%**********++++++++++++++++[37a03] translation-task} [Timer] Timings: [Timer] annotate --- 485.9 s [Timer] rtype_lltype --- 822.1 s [Timer] pyjitpl_lltype --- 933.9 s [Timer] backendopt_lltype --- 255.8 s [Timer] =========================================== [Timer] Total: --- 2497.6 s [translation:info] Error: [translation:info] File "/home/dje/src/pypy/rpython/translator/goal/translate.py", line 318, in main [translation:info] drv.proceed(goals) [translation:info] File "/home/dje/src/pypy/rpython/translator/driver.py", line 549, in proceed [translation:info] result = self._execute(goals, task_skip = self._maybe_skip()) [translation:info] File "/home/dje/src/pypy/rpython/translator/tool/taskengine.py", line 114, in _execute [translation:info] res = self._do(goal, taskcallable, *args, **kwds) [translation:info] File "/home/dje/src/pypy/rpython/translator/driver.py", line 278, in _do [translation:info] res = func() [translation:info] File "/home/dje/src/pypy/rpython/translator/driver.py", line 384, in task_backendopt_lltype [translation:info] backend_optimizations(self.translator) [translation:info] File "/home/dje/src/pypy/rpython/translator/backendopt/all.py", line 142, in backend_optimizations [translation:info] gilanalysis.analyze(graphs, translator) [translation:info] File "/home/dje/src/pypy/rpython/translator/backendopt/gilanalysis.py", line 51, in analyze [translation:info] " %s\n%s" % (func, err.getvalue())) [translation:ERROR] Exception: 'no_release_gil' function can release the GIL: <function assemble_loop at 0x3ffacb18ac8> [translation:ERROR] [GilAnalyzer] analyze_direct_call((rpython.rtyper.lltypesystem.rffi:3)ccall_write__INT_arrayPtr_Unsigned): True [translation:ERROR] [GilAnalyzer] analyze_direct_call((rpython.rlib.rposix:446)write): True [translation:ERROR] [GilAnalyzer] analyze_direct_call((rpython.flowspace.specialcase:81)rpython_print_newline): True [translation:ERROR] [GilAnalyzer] 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<FunctionGraph of (rpython.jit.backend.zarch.opassembler:199)AssemblerZARCH.emit_int_is_zero at 0x3ff7c860438>, <FunctionGraph of (rpython.jit.backend.zarch.opassembler:204)AssemblerZARCH.emit_int_is_true at 0x3ff7c860dd8>, <FunctionGraph of (rpython.jit.backend.zarch.opassembler:177)AssemblerZARCH.emit_int_neg at 0x3ff7c860f98>, <FunctionGraph of (rpython.jit.backend.zarch.opassembler:172)AssemblerZARCH.emit_int_invert at 0x3ff7c860fd0>]): True [translation:ERROR] [GilAnalyzer] analyze_direct_call((rpython.jit.backend.zarch.regalloc:470)Regalloc.walk_operations): True [translation:ERROR] [GilAnalyzer] analyze_direct_call((rpython.jit.backend.zarch.assembler:840)AssemblerZARCH._assemble): True [translation:ERROR] [translation] start debugger...
/home/dje/src/pypy/rpython/translator/backendopt/gilanalysis.py(51)analyze() -> " %s\n%s" % (func, err.getvalue()))
On Tue, Jan 19, 2016 at 10:47 AM, Richard Plangger <planrichi@gmail.com> wrote:
This is caused by the print statement in the notimplemented_op() function (file rpython/jit/backend/zarch/assembler.py , line 1464). I'll look into improving the output of GraphAnalyzer later today, so it shows more clearly which function caused the problem. -Manuel On 2016-01-19 20:52, David Edelsohn wrote:
Hi Richard, On Tue, Jan 19, 2016 at 12:12 PM, Richard Plangger <planrichi@gmail.com> wrote:
I must admit I did not try to run the whole test suite of PyPy on PPC; only the JIT's. Yes, it is expected to discover such small issues. I expect most of the issues to be in tests not written with that case in mind. A bientôt, Armin.
On Tue, Jan 19, 2016 at 6:12 AM, Richard Plangger <planrichi@gmail.com> wrote:
The default GCC on the buildbot is GCC 5.2 gcc version 5.2.1 20150911 (Debian 5.2.1-17) I just updated Binutils on the system in case something was out of date. I can try translating on the buildbot, if you wish. - David
It seems that I'm using old software on the vm. :) I kicked the build bot to see if the update has any effect. Some of the failing tests (on the buildbot only) are very severe, and it is hard to find out the cause if they do not fail on the development machine... We could try to start a translation, but I'm unsure if it will really work. Cheers, Richard On 01/19/2016 04:40 PM, David Edelsohn wrote:
Hi Richard, On Tue, Jan 19, 2016 at 4:47 PM, Richard Plangger <planrichi@gmail.com> wrote:
Note: at this point where a JIT backend is "mostly done", subtle bugs left in the JIT backend generate hard crashes that show up very rarely. I recommend that you use test_zll_stress_*.py in jit/backend/test/ --- and not just once. For example, leave them running repeatedly for 12 or 24 hours and be happy only if they pass successfully every time. These tests are good at figuring out such rare cases. A bientôt, Armin.
Debian apparently supports all z/Arch processors, so the toolchain defaults to much older processor model. For zEC12 and above, one must explicitly invoke GCC with -march=zEC12. I set CFLAGS and the translation is much happier. The s390x buildbot should explicitly use -march=zEC12. Thanks, David On Tue, Jan 19, 2016 at 10:47 AM, Richard Plangger <planrichi@gmail.com> wrote:
Translation got pretty far, until ... ***%**********++++++++++++++++[37a03] translation-task} [Timer] Timings: [Timer] annotate --- 485.9 s [Timer] rtype_lltype --- 822.1 s [Timer] pyjitpl_lltype --- 933.9 s [Timer] backendopt_lltype --- 255.8 s [Timer] =========================================== [Timer] Total: --- 2497.6 s [translation:info] Error: [translation:info] File "/home/dje/src/pypy/rpython/translator/goal/translate.py", line 318, in main [translation:info] drv.proceed(goals) [translation:info] File "/home/dje/src/pypy/rpython/translator/driver.py", line 549, in proceed [translation:info] result = self._execute(goals, task_skip = self._maybe_skip()) [translation:info] File "/home/dje/src/pypy/rpython/translator/tool/taskengine.py", line 114, in _execute [translation:info] res = self._do(goal, taskcallable, *args, **kwds) [translation:info] File "/home/dje/src/pypy/rpython/translator/driver.py", line 278, in _do [translation:info] res = func() [translation:info] File "/home/dje/src/pypy/rpython/translator/driver.py", line 384, in task_backendopt_lltype [translation:info] backend_optimizations(self.translator) [translation:info] File "/home/dje/src/pypy/rpython/translator/backendopt/all.py", line 142, in backend_optimizations [translation:info] gilanalysis.analyze(graphs, translator) [translation:info] File "/home/dje/src/pypy/rpython/translator/backendopt/gilanalysis.py", line 51, in analyze [translation:info] " %s\n%s" % (func, err.getvalue())) [translation:ERROR] Exception: 'no_release_gil' function can release the GIL: <function assemble_loop at 0x3ffacb18ac8> [translation:ERROR] [GilAnalyzer] analyze_direct_call((rpython.rtyper.lltypesystem.rffi:3)ccall_write__INT_arrayPtr_Unsigned): True [translation:ERROR] [GilAnalyzer] analyze_direct_call((rpython.rlib.rposix:446)write): True [translation:ERROR] [GilAnalyzer] analyze_direct_call((rpython.flowspace.specialcase:81)rpython_print_newline): True [translation:ERROR] [GilAnalyzer] 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<FunctionGraph of (rpython.jit.backend.zarch.opassembler:199)AssemblerZARCH.emit_int_is_zero at 0x3ff7c860438>, <FunctionGraph of (rpython.jit.backend.zarch.opassembler:204)AssemblerZARCH.emit_int_is_true at 0x3ff7c860dd8>, <FunctionGraph of (rpython.jit.backend.zarch.opassembler:177)AssemblerZARCH.emit_int_neg at 0x3ff7c860f98>, <FunctionGraph of (rpython.jit.backend.zarch.opassembler:172)AssemblerZARCH.emit_int_invert at 0x3ff7c860fd0>]): True [translation:ERROR] [GilAnalyzer] analyze_direct_call((rpython.jit.backend.zarch.regalloc:470)Regalloc.walk_operations): True [translation:ERROR] [GilAnalyzer] analyze_direct_call((rpython.jit.backend.zarch.assembler:840)AssemblerZARCH._assemble): True [translation:ERROR] [translation] start debugger...
/home/dje/src/pypy/rpython/translator/backendopt/gilanalysis.py(51)analyze() -> " %s\n%s" % (func, err.getvalue()))
On Tue, Jan 19, 2016 at 10:47 AM, Richard Plangger <planrichi@gmail.com> wrote:
This is caused by the print statement in the notimplemented_op() function (file rpython/jit/backend/zarch/assembler.py , line 1464). I'll look into improving the output of GraphAnalyzer later today, so it shows more clearly which function caused the problem. -Manuel On 2016-01-19 20:52, David Edelsohn wrote:
participants (4)
-
Armin Rigo -
David Edelsohn -
Manuel Jacob -
Richard Plangger