Issues with intel's compiler and newer builds of GCC
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 While working on getting icc to not choke on Serialization (the Boost test boxes indicated that icc was failing to build with the addition of my changes), I came across a very nasty bug the occurs when using icc with version 4.5 or higher of GNU's standard library - GNU's <iomanip> uses what are either illegal or C++0x semantics which icc doesn't support. Serialization uses <iomanip>, and icc seems to select the latest version of libstd++ installed on a Linux machine as it's default standard library (I have been unable to find an Intel standard library - I'm assuming such a thing doesn't exist). When using an older version of libstd++, icc + Serialization compiled fine. I removed all uses of IO parameterized manipulators in Serialization (there were only maybe half a dozen cases)*, and got icc to compile Serialization with libstd++ v4.5. Is there any chance the linux/darwin Intel build bots can be set up to use libstd++ v4.4, if they're not already using it? Intel is apparently aware of this issue, but it won't be fixed until their next major release (http://software.intel.com/en-us/forums/showthread.php?t=74691). If the build bots aren't using v4.5 of GNU's standard library, then I'm at a loss as to why Serialization is failing to build on them. My only other thought is that the timeout for the build cycle is too low - the failures indicate that the error is a timeout after 300 seconds. On a more general note, is Intel on Linux/Darwin a "supported" Boost compiler? Unless I've missed something, Intel doesn't provide a standard library, and I find it a bit troubling that they ship their compiler to use GNU's standard library by default. Intel is far behind GCC in C++0x support, and newer versions of the GNU standard library have been making increasing use of GCC's C++0x support. Unless icc starts shipping with an older version of libstd++/use a compiler neutral standard library such as the Apache standard library/starts to catch up with GCC's C++0x support, I imagine that using icc to compile C++ code that makes use of the standard library will become increasing difficult. * I also had to modify proto/debug.hpp to not use <iomanip>. Eric, when I was having an issue with typeinfo in proto/debug.hpp a couple days ago, you mentioned that proto/debug.hpp shouldn't be included by proto/proto.hpp? If that's accurate, is there any chance that change could be made, and if not, can I commit my changes to proto/debug.hpp or send them to you as a patch for review? - -- Bryce Lelbach aka wash http://groups.google.com/group/ariel_devel -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAky+c7cACgkQO/fqqIuE2t4DZQCfUnhGAsqX4GDZu3Ze7BvrPBRL XRkAn33vWcTm1RuXk2iuQWH0+bp+RVUf =mHwK -----END PGP SIGNATURE-----
On 20 Oct 2010, at 05:44, Bryce Lelbach wrote:
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On a more general note, is Intel on Linux/Darwin a "supported" Boost compiler? Unless I've missed something, Intel doesn't provide a standard library, and I find it a bit troubling that they ship their compiler to use GNU's standard library by default. Intel is far behind GCC in C++0x support, and newer versions of the GNU standard library have been making increasing use of GCC's C++0x support. Unless icc starts shipping with an older version of libstd++/use a compiler neutral standard library such as the Apache standard library/starts to catch up with GCC's C++0x support, I imagine that using icc to compile C++ code that makes use of the standard library will become increasing difficult.
Both icc and clang use libstdc++ on linux, mainly to ensure you get binary compatibility with libraries compiled with the system compiler. libstdc++ is increasingly using C++0x code in their headers, and until icc and clang catch up, there might well be problems. Chris
While working on getting icc to not choke on Serialization (the Boost test boxes indicated that icc was failing to build with the addition of my changes), I came across a very nasty bug the occurs when using icc with version 4.5 or higher of GNU's standard library - GNU's <iomanip> uses what are either illegal or C++0x semantics which icc doesn't support. Serialization uses <iomanip>, and icc seems to select the latest version of libstd++ installed on a Linux machine as it's default standard library (I have been unable to find an Intel standard library - I'm assuming such a thing doesn't exist).
When using an older version of libstd++, icc + Serialization compiled fine. I removed all uses of IO parameterized manipulators in Serialization (there were only maybe half a dozen cases)*, and got icc to compile Serialization with libstd++ v4.5.
Oh, Intel's compiler isn't supported with gcc-4.5, period. Basically you shouldn't use it with anything except 4.4 or lower - there should be an installation option to control which gcc version gets picked up, but it's such a while since I had to do that I can't remember how it all works :-(
Is there any chance the linux/darwin Intel build bots can be set up to use libstd++ v4.4, if they're not already using it? Intel is apparently aware of this issue, but it won't be fixed until their next major release (http://software.intel.com/en-us/forums/showthread.php?t=74691).
You can always find out what compiler and library versions are in use by going to the Boost.Config test results and clicking on the config_info results for the test runner you're interested in, for example: http://tinyurl.com/2ujk8td indicates that Darwin Intel-11.1 is on top of gcc 4.0.1.
If the build bots aren't using v4.5 of GNU's standard library, then I'm at a loss as to why Serialization is failing to build on them. My only other thought is that the timeout for the build cycle is too low - the failures indicate that the error is a timeout after 300 seconds.
I see what you mean... not very helpful! The best you can do is contact the test runner for more info. As a general note, the Intel-Darwin tests seem to have more than their fair share of unexpected/unexplained failures, I can only assume that Intel's support for Darwin is a lot less mature than for Windows/Linux.
On a more general note, is Intel on Linux/Darwin a "supported" Boost compiler?
Issue with core "supported" compiles are shown on the issues page: http://beta.boost.org/development/tests/trunk/developer/issues.html, there are no Intel-Darwin failures there, just the VC7.1 ones. HTH, John.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Wed, 20 Oct 2010 09:37:01 +0100 John Maddock <boost.regex@virgin.net> wrote:
If the build bots aren't using v4.5 of GNU's standard library, then I'm at a loss as to why Serialization is failing to build on them. My only other thought is that the timeout for the build cycle is too low - the failures indicate that the error is a timeout after 300 seconds.
I see what you mean... not very helpful!
The best you can do is contact the test runner for more info.
How do I do this? This is now a problem for the MSVC-7.1 test, too. It, too, times out. The logs from the build machine have warnings. These warnings are identical to ones that I get with MSVC-7.1 when building Serialization (rather, the warnings shown on the build logs are a subset of the warnings I get, the logs seem to cut off after a certain amount of warnings, e.g. 65k). Building Serialization with MSVC-7.1 passes all tests on my machine and builds all examples, without any trouble. I'm sure the argument could be made that five minutes (300 seconds) is more than reasonable, and the XML grammar for Serialization could definately be refactored (it's structure is nearly identical to the old Spirit.Classic grammar; I didn't want to get fancy). However, the grammar works, and I'd really like to not have false negatives from the build machines. This is, to my knowledge, the first component of Boost that uses Spirit 2.x (Hartmut/Joel please correct me if I am wrong. Wave uses Spirit Classic, I believe). The Spirit 2.x examples aren't compiled by the tests, so I am assuming that this is the first time the build bots have compiled larger Spirit 2.x parsers. The compile times for MSVC 10, GCC and clang are all far more reasonable than Intel and MSVC 7.1 on my machines. - -- Bryce Lelbach aka wash http://groups.google.com/group/ariel_devel -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAky/BRQACgkQO/fqqIuE2t43ogCfePyWL8W50xA2nAXD9bhOXqpW kJQAnR5vs4/crhNeKSzj2S0JQc1PpHkv =UGo7 -----END PGP SIGNATURE-----
If the build bots aren't using v4.5 of GNU's standard library, then I'm at a loss as to why Serialization is failing to build on them. My only other thought is that the timeout for the build cycle is too low - the failures indicate that the error is a timeout after 300 seconds.
I see what you mean... not very helpful!
The best you can do is contact the test runner for more info.
How do I do this?
Click on the test runner name, and you'll get to a page like this: http://beta.boost.org/development/tests/trunk/Sandia-intel-11.0.html that hopefully has what you need to know.
This is now a problem for the MSVC-7.1 test, too. It, too, times out. The logs from the build machine have warnings. These warnings are identical to ones that I get with MSVC-7.1 when building Serialization (rather, the warnings shown on the build logs are a subset of the warnings I get, the logs seem to cut off after a certain amount of warnings, e.g. 65k). Building Serialization with MSVC-7.1 passes all tests on my machine and builds all examples, without any trouble.
I'm sure the argument could be made that five minutes (300 seconds) is more than reasonable, and the XML grammar for Serialization could definately be refactored (it's structure is nearly identical to the old Spirit.Classic grammar; I didn't want to get fancy). However, the grammar works, and I'd really like to not have false negatives from the build machines. This is, to my knowledge, the first component of Boost that uses Spirit 2.x (Hartmut/Joel please correct me if I am wrong. Wave uses Spirit Classic, I believe). The Spirit 2.x examples aren't compiled by the tests, so I am assuming that this is the first time the build bots have compiled larger Spirit 2.x parsers.
The compile times for MSVC 10, GCC and clang are all far more reasonable than Intel and MSVC 7.1 on my machines.
I agree that the time limit can be pretty annoying - I had to refactor a large number of the Boost.Math tests to avoid long run times. However, the limit is not unreasonable either - it is important that the tests cycle in a reasonable time - remember that the CPU time on the build bots has all been graciously donated, and isn't entirely free of cost. We also need to consider the impact on the end user of long compile times, also on the occasional "casual" tester of Boost.Serialization - the time taken to run all the tests is pretty long, so anything that can be done to reduce that would be a big win. Would it be worth getting the spirit2 developers in on this to see if there is any low-hanging fruit that can be pulled? Cheers, John. PS lots of Linux testers are failing with unresolved externals: http://tinyurl.com/392j2wm as well, sorry :-(
This is now a problem for the MSVC-7.1 test, too. It, too, times out. The logs from the build machine have warnings. These warnings are identical to ones that I get with MSVC-7.1 when building Serialization (rather, the warnings shown on the build logs are a subset of the warnings I get, the logs seem to cut off after a certain amount of warnings, e.g. 65k). Building Serialization with MSVC-7.1 passes all tests on my machine and builds all examples, without any trouble.
I'm sure the argument could be made that five minutes (300 seconds) is more than reasonable, and the XML grammar for Serialization could definately be refactored (it's structure is nearly identical to the old Spirit.Classic grammar; I didn't want to get fancy). However, the grammar works, and I'd really like to not have false negatives from the build machines. This is, to my knowledge, the first component of Boost that uses Spirit 2.x (Hartmut/Joel please correct me if I am wrong. Wave uses Spirit Classic, I believe). The Spirit 2.x examples aren't compiled by the tests, so I am assuming that this is the first time the build bots have compiled larger Spirit 2.x parsers.
The compile times for MSVC 10, GCC and clang are all far more reasonable than Intel and MSVC 7.1 on my machines.
I agree that the time limit can be pretty annoying - I had to refactor a large number of the Boost.Math tests to avoid long run times. However, the limit is not unreasonable either - it is important that the tests cycle in a reasonable time - remember that the CPU time on the build bots has all been graciously donated, and isn't entirely free of cost. We also need to consider the impact on the end user of long compile times, also on the occasional "casual" tester of Boost.Serialization - the time taken to run all the tests is pretty long, so anything that can be done to reduce that would be a big win.
Would it be worth getting the spirit2 developers in on this to see if there is any low-hanging fruit that can be pulled?
Not that I know of :-( We're trying to bring down Spirit's compilations times, but that's a slow process... Couldn't we customize the max time before cutoff for compilers known to be slow (icc) only? Regards Hartmut --------------- http://boost-spirit.com
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Wed, 20 Oct 2010 11:41:09 -0500 "Hartmut Kaiser" <hartmut.kaiser@gmail.com> wrote:
This is now a problem for the MSVC-7.1 test, too. It, too, times out. The logs from the build machine have warnings. These warnings are identical to ones that I get with MSVC-7.1 when building Serialization (rather, the warnings shown on the build logs are a subset of the warnings I get, the logs seem to cut off after a certain amount of warnings, e.g. 65k). Building Serialization with MSVC-7.1 passes all tests on my machine and builds all examples, without any trouble.
I'm sure the argument could be made that five minutes (300 seconds) is more than reasonable, and the XML grammar for Serialization could definately be refactored (it's structure is nearly identical to the old Spirit.Classic grammar; I didn't want to get fancy). However, the grammar works, and I'd really like to not have false negatives from the build machines. This is, to my knowledge, the first component of Boost that uses Spirit 2.x (Hartmut/Joel please correct me if I am wrong. Wave uses Spirit Classic, I believe). The Spirit 2.x examples aren't compiled by the tests, so I am assuming that this is the first time the build bots have compiled larger Spirit 2.x parsers.
The compile times for MSVC 10, GCC and clang are all far more reasonable than Intel and MSVC 7.1 on my machines.
I agree that the time limit can be pretty annoying - I had to refactor a large number of the Boost.Math tests to avoid long run times. However, the limit is not unreasonable either - it is important that the tests cycle in a reasonable time - remember that the CPU time on the build bots has all been graciously donated, and isn't entirely free of cost. We also need to consider the impact on the end user of long compile times, also on the occasional "casual" tester of Boost.Serialization - the time taken to run all the tests is pretty long, so anything that can be done to reduce that would be a big win.
Would it be worth getting the spirit2 developers in on this to see if there is any low-hanging fruit that can be pulled?
Not that I know of :-( We're trying to bring down Spirit's compilations times, but that's a slow process...
Couldn't we customize the max time before cutoff for compilers known to be slow (icc) only?
Regards Hartmut --------------- http://boost-spirit.com
_______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost
There's a lot of room in the grammar for refactoring; some of the productions in the grammar are now deprecated in the XML standard (in favor of less annoying rules). However, I really don't want to refactor the XML grammar half-heartedly. Currently, the grammar works perfectly, and the tests should reflect that. If my schedule is freed up a bit in the future (I have recently taken on and am currently working on something of an ambitious scope), I would implement the following changes to Serialization archives: * Rewrite all the existing archives using Spirit 2.x (Karma for output archives, Qi for input archives). * Create a new interface, allowing users to write new archive types using Qi and Karma. I'm hesitant to refactor the XML grammar at this point, because the current implementation of the grammar is a bit un-Spirit-like. In fact, the template class basic_xml_grammar is not even a qi grammar (e.g. it doesn't inherit from qi::grammar). Under the hood, the Spirit stuff for Serialization is somewhat unorthodox. This is how Ramey originally did it; it worked and performed well at runtime with Spirit Classic, and it works and performs well at runtime now. I could make it work better and perform faster at runtime and compile time, but the best way to do that would involve ripping up a lot of the existing archive internals. I'll contact the test runner. IMHO, timeouts should not have a fixed value; instead, new tests should not timeout at all on their first run, but the time they take to run should be recorded. The runtime duration of each run after the first should also be recorded. This would allow a range of predicted durations to be computed, and the high value in that range should be used to compute a timeout duration. This would also be helpful because it could show Boost TMP maintainers how changes in their libraries affect compile times. - -- Bryce Lelbach aka wash http://groups.google.com/group/ariel_devel -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAky/JuEACgkQO/fqqIuE2t6bwACgwVT+2Nn/s3Yp+DyqtxK5aaH2 WAcAoNMfmKyzzNELcBnOIgNCXzbLxlgW =j/WR -----END PGP SIGNATURE-----
Bryce Lelbach wrote:
There's a lot of room in the grammar for refactoring; some of the productions in the grammar are now deprecated in the XML standard (in favor of less annoying rules).
However, I really don't want to refactor the XML grammar half-heartedly. Currently, the grammar works perfectly, and the tests should reflect that.
Smart move - one battle at a time.
If my schedule is freed up a bit in the future (I have recently taken on and am currently working on something of an ambitious scope), I would implement the following changes to Serialization archives:
* Rewrite all the existing archives using Spirit 2.x (Karma for output archives, Qi for input archives). * Create a new interface, allowing users to write new archive types using Qi and Karma.
A more interesting task would be to make karma/qi archive. Using the serialization interface, one could generate the karma/qi code that would implement a text editor for the created archive.
I could make it work better and perform faster at runtime and compile time, but the best way to do that would involve ripping up a lot of the existing archive internals.
As I remember, aside from creating the grammer, there was hardly any code to write so I'm not sure what archive internals refers to. In any case, I'm please that someone has taken responsability for this. This same set of problems - compiler quirks, stack overflows at compile time, etc ocurred with the original version. These were handled by a few minor re-factorings in the grammer. The original grammer was derived from Dan Nuffers XML grammer which was part of the original spirit package.
I'll contact the test runner. IMHO, timeouts should not have a fixed value; instead, new tests should not timeout at all on their first run, but the time they take to run should be recorded. The runtime duration of each run after the first should also be recorded. This would allow a range of predicted durations to be computed, and the high value in that range should be used to compute a timeout duration. This would also be helpful because it could show Boost TMP maintainers how changes in their libraries affect compile times.
It looks to me that this time overflow should only occur during the build of the library - a one time thing. That is, it wouldn't have to be increased for each test. Robert Ramey
On Wed, Oct 20, 2010 at 11:29 AM, Bryce Lelbach <admin@thefireflyproject.us> wrote:
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On Wed, 20 Oct 2010 11:41:09 -0500 "Hartmut Kaiser" <hartmut.kaiser@gmail.com> wrote:
This is now a problem for the MSVC-7.1 test, too. It, too, times out. The logs from the build machine have warnings. These warnings are identical to ones that I get with MSVC-7.1 when building Serialization (rather, the warnings shown on the build logs are a subset of the warnings I get, the logs seem to cut off after a certain amount of warnings, e.g. 65k). Building Serialization with MSVC-7.1 passes all tests on my machine and builds all examples, without any trouble.
I'm sure the argument could be made that five minutes (300 seconds) is more than reasonable, and the XML grammar for Serialization could definately be refactored (it's structure is nearly identical to the old Spirit.Classic grammar; I didn't want to get fancy). However, the grammar works, and I'd really like to not have false negatives from the build machines. This is, to my knowledge, the first component of Boost that uses Spirit 2.x (Hartmut/Joel please correct me if I am wrong. Wave uses Spirit Classic, I believe). The Spirit 2.x examples aren't compiled by the tests, so I am assuming that this is the first time the build bots have compiled larger Spirit 2.x parsers.
The compile times for MSVC 10, GCC and clang are all far more reasonable than Intel and MSVC 7.1 on my machines.
I agree that the time limit can be pretty annoying - I had to refactor a large number of the Boost.Math tests to avoid long run times. However, the limit is not unreasonable either - it is important that the tests cycle in a reasonable time - remember that the CPU time on the build bots has all been graciously donated, and isn't entirely free of cost. We also need to consider the impact on the end user of long compile times, also on the occasional "casual" tester of Boost.Serialization - the time taken to run all the tests is pretty long, so anything that can be done to reduce that would be a big win.
Would it be worth getting the spirit2 developers in on this to see if there is any low-hanging fruit that can be pulled?
Not that I know of :-( We're trying to bring down Spirit's compilations times, but that's a slow process...
Couldn't we customize the max time before cutoff for compilers known to be slow (icc) only?
Regards Hartmut --------------- http://boost-spirit.com
_______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost
There's a lot of room in the grammar for refactoring; some of the productions in the grammar are now deprecated in the XML standard (in favor of less annoying rules).
However, I really don't want to refactor the XML grammar half-heartedly. Currently, the grammar works perfectly, and the tests should reflect that.
If my schedule is freed up a bit in the future (I have recently taken on and am currently working on something of an ambitious scope), I would implement the following changes to Serialization archives:
* Rewrite all the existing archives using Spirit 2.x (Karma for output archives, Qi for input archives). * Create a new interface, allowing users to write new archive types using Qi and Karma.
I'm hesitant to refactor the XML grammar at this point, because the current implementation of the grammar is a bit un-Spirit-like. In fact, the template class basic_xml_grammar is not even a qi grammar (e.g. it doesn't inherit from qi::grammar). Under the hood, the Spirit stuff for Serialization is somewhat unorthodox. This is how Ramey originally did it; it worked and performed well at runtime with Spirit Classic, and it works and performs well at runtime now. I could make it work better and perform faster at runtime and compile time, but the best way to do that would involve ripping up a lot of the existing archive internals.
Boost.Serialization supports multiple archive types, instead of just rewriting the XML archive, why not make an XML2 archive, not necessarily backwards compatible with the XML(1) archive, ergo you can design it as you see fit? Could even make a sexpr grammar as well for both readability like XML, plus a much faster parsing time due to being vastly easier to parse then XML. On Wed, Oct 20, 2010 at 11:29 AM, Bryce Lelbach <admin@thefireflyproject.us> wrote:
I'll contact the test runner. IMHO, timeouts should not have a fixed value; instead, new tests should not timeout at all on their first run, but the time they take to run should be recorded. The runtime duration of each run after the first should also be recorded. This would allow a range of predicted durations to be computed, and the high value in that range should be used to compute a timeout duration. This would also be helpful because it could show Boost TMP maintainers how changes in their libraries affect compile times.
- -- Bryce Lelbach aka wash http://groups.google.com/group/ariel_devel -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux)
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On Oct 20, 2010, at 10:41 AM, Hartmut Kaiser wrote:
This is now a problem for the MSVC-7.1 test, too. It, too, times out. The logs from the build machine have warnings. These warnings are identical to ones that I get with MSVC-7.1 when building Serialization (rather, the warnings shown on the build logs are a subset of the warnings I get, the logs seem to cut off after a certain amount of warnings, e.g. 65k). Building Serialization with MSVC-7.1 passes all tests on my machine and builds all examples, without any trouble.
I'm sure the argument could be made that five minutes (300 seconds) is more than reasonable, and the XML grammar for Serialization could definately be refactored (it's structure is nearly identical to the old Spirit.Classic grammar; I didn't want to get fancy). However, the grammar works, and I'd really like to not have false negatives from the build machines. This is, to my knowledge, the first component of Boost that uses Spirit 2.x (Hartmut/Joel please correct me if I am wrong. Wave uses Spirit Classic, I believe). The Spirit 2.x examples aren't compiled by the tests, so I am assuming that this is the first time the build bots have compiled larger Spirit 2.x parsers.
The compile times for MSVC 10, GCC and clang are all far more reasonable than Intel and MSVC 7.1 on my machines.
I agree that the time limit can be pretty annoying - I had to refactor a large number of the Boost.Math tests to avoid long run times. However, the limit is not unreasonable either - it is important that the tests cycle in a reasonable time - remember that the CPU time on the build bots has all been graciously donated, and isn't entirely free of cost. We also need to consider the impact on the end user of long compile times, also on the occasional "casual" tester of Boost.Serialization - the time taken to run all the tests is pretty long, so anything that can be done to reduce that would be a big win.
Would it be worth getting the spirit2 developers in on this to see if there is any low-hanging fruit that can be pulled?
Not that I know of :-( We're trying to bring down Spirit's compilations times, but that's a slow process...
Couldn't we customize the max time before cutoff for compilers known to be slow (icc) only?
Well it's not just Intel. PGI is another very slow EDG based compiler. Frankly I think five minutes is a pretty long time for a compiler to chew on a single source file. Note that most of the Sandia hardware these tests run on is pretty high end server stuff (e.g. 8 core Intel 5570's, 32 Gb memory and 500Gb local disks). I point this out because most users have significantly less capable systems so they will experience significantly longer compile times. Off the top of my head, I don't know how to alter Boost.Build to introduce a toolset dependent timeout though I'm sure it can be done. I'm just not at all convinced that we should do it. -- Noel
participants (7)
-
Belcourt, K. Noel -
Bryce Lelbach -
Christopher Jefferson -
Hartmut Kaiser -
John Maddock -
OvermindDL1 -
Robert Ramey