<div dir="ltr">Alexey,<div>Thanks for checking the codebase. Do you feel that the C++ program is hard to support in the</div><div>current framework, without a great deal of code rewrite? </div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Feb 14, 2020 at 6:19 AM Alexey Bataev <<a href="mailto:a.bataev@outlook.com">a.bataev@outlook.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<p>Itaru, there are really a lot of problems with the codebase.</p>
<p>1. Mapped classes use standard data types, like std::stream,
std::string etc. NVPTX does not have implementation for these
classes and all member function for these classes wont be resolved
(they are part of libstdc++, NVPTX does not have implementation
for it, I assume).</p>
<p>2. Virtual member functions and RTTI. You cannot rely on this,
especially on RTTI (dynamic_cast, for example, is not supported by
NVPTX since, again, RTTI requires libstdc++).</p>
<p>3. Some static data members are also marked as not resolved. They
must be explicitly marked as declare target, if the data type is
mapped.<br>
</p>
<pre cols="72">-------------
Best regards,
Alexey Bataev</pre>
<div>13.02.2020 3:20 PM, Itaru Kitayama
пишет:<br>
</div>
<blockquote type="cite">
<div>
<div dir="auto">Right </div>
</div>
<div dir="auto"><br>
</div>
<div dir="auto">Its under my GotHub account ikitayama</div>
<div><br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Fri, Feb 14, 2020 at 5:19
Alexey Bataev <<a href="mailto:a.bataev@outlook.com" target="_blank">a.bataev@outlook.com</a>> wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<p>Hmm, I don't see this branch in the NEST repo<br>
</p>
<pre cols="72">-------------
Best regards,
Alexey Bataev</pre>
<div>13.02.2020 3:16 PM, Itaru Kitayama пишет:<br>
</div>
</div>
<div>
<blockquote type="cite">
<div>
<div dir="auto">Alexey,</div>
</div>
<div dir="auto">The branch I’m working on is </div>
<div dir="auto"><br>
</div>
<div dir="auto"><span>clang-openmp-offloading</span><br>
</div>
<div dir="auto"><span><br>
</span></div>
<div><br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Fri, Feb 14,
2020 at 4:56 Alexey Bataev <<a href="mailto:a.bataev@outlook.com" target="_blank">a.bataev@outlook.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<p>Hi Itaru, tried to rebuild the latest NEST
with latest trunk clang compiler. Everything
linked correctly with the offloading flags.<br>
</p>
<pre cols="72">-------------
Best regards,
Alexey Bataev</pre>
<div>12.02.2020 11:55 PM, Itaru Kitayama пишет:<br>
</div>
</div>
<div>
<blockquote type="cite">
<div dir="ltr">Alexey,
<div><br>
</div>
<div>In my app, NEST, the code which creates
an object on the device does not build if
offloading flags are enabled but</div>
<div>does build without it. It will likely
be difficult to come up with a compact
reproducer, would it be ok for you to ask
to take</div>
<div>a look at the code I am working on? </div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Tue,
Feb 4, 2020 at 8:01 PM Alexey Bataev <<a href="mailto:a.bataev@outlook.com" target="_blank">a.bataev@outlook.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="auto"> It must be fixed. But you
need to add #include <new> to your
program.<br>
<br>
<div dir="ltr">Best regards,
<div>Alexey Bataev</div>
</div>
<div dir="ltr"><br>
<blockquote type="cite">3 февр. 2020
г., в 23:34, Itaru Kitayama <<a href="mailto:itaru.kitayama@gmail.com" target="_blank">itaru.kitayama@gmail.com</a>>
написал(а):<br>
<br>
</blockquote>
</div>
<blockquote type="cite">
<div dir="ltr">
<div dir="ltr">Alexey,
<div><br>
</div>
<div>Am still seeing a build time
error like below:</div>
<div>$ clang++ -g -fopenmp
-fopenmp-targets=nvptx64 new.cpp<br>
nvlink error : Undefined
reference to '_Znam' in
'/tmp/new-a4b234.cubin'<br>
clang-11: error: nvlink command
failed with exit code 255 (use
-v to see invocation)<br>
$ cat new.cpp<br>
int main() {<br>
#pragma omp target parallel for<br>
for (int i=0;i<10;i++) {<br>
int *a = new int[100];<br>
}<br>
}<br>
</div>
<div><br>
</div>
<div>Are you still working on
this? My Clang(-11) is the
latest one built from Trunk.</div>
<div><br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On
Wed, Jan 22, 2020 at 4:34 AM
Alexey Bataev <<a href="mailto:a.bataev@outlook.com" target="_blank">a.bataev@outlook.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<p>Ok, it compiles with <a href="https://reviews.llvm.org/D73128" target="_blank">
https://reviews.llvm.org/D73128</a>
applied and additional
include of stdlib.h. Still,
cannot be executed, though,
most probably beacuse of the
virtual functions.<br>
</p>
<p><br>
</p>
<pre cols="72">-------------
Best regards,
Alexey Bataev</pre>
<div>20.01.2020 6:21 PM, Itaru
Kitayama пишет:<br>
</div>
<blockquote type="cite">
<div dir="ltr">This
reproducer attached, while
it may have irrelevant
code, shows the issue.
<div><br>
</div>
<div>clang++ -g -fopenmp
-fopenmp-targets=nvptx64
my1.cpp</div>
<div><br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On
Fri, Jan 17, 2020 at
3:16 PM Alexey Bataev
<<a href="mailto:a.bataev@outlook.com" target="_blank">a.bataev@outlook.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<p>No idea what does
it mean. What
object? Where
locally? Provide
code and steps to
reproduce.<br>
</p>
<pre cols="72">-------------
Best regards,
Alexey Bataev</pre>
<div>16.01.2020 6:50
PM, Itaru Kitayama
via Openmp-dev
пишет:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hi,
<div><br>
</div>
<div>Locally
creating an
object under the
target region
causes nvlink</div>
<div>errors (same
code builds fine
without
offloading
support flags):</div>
<div><br>
</div>
<div> nvlink error
: Undefined
reference to
'_ZNK14AggregateDatumIN4nest12ConnectionIDEXadL_ZNS0_10NestModule14ConnectionTypeEEEE5printERSo'
in
'/tmp/event_delivery_manager-656e32.cubin'</div>
nvlink error :
Undefined
reference to
'_ZNK14AggregateDatumIN4nest12ConnectionIDEXadL_ZNS0_10NestModule14ConnectionTypeEEEE6pprintERSo'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZNK5Datum4infoERSo'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'__assert_fail' in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZN4nest12ConnectionIDC2ERKS0_'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_Znam' in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEOS4_'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED1Ev'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZN4nest19WeightRecorderEventclEv'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZN3sli4pool4growEm'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZSt20__throw_length_errorPKc'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZSt17__throw_bad_allocv'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_Znwm' in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'strlen' in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZN5TokenC1El' in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZdlPv' in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'rand' in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZN5TokenC1Ed' in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZN4nest19WeightRecorderEventC2Ev'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZSt18_Rb_tree_decrementPSt18_Rb_tree_node_base'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZSt29_Rb_tree_insert_and_rebalancebPSt18_Rb_tree_node_baseS0_RS_'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_Z8getValueIdET_RK5Token'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZN4nest12ConnectionIDC1Elllll'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_Z8ld_roundd' in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZNK4nest11SourceTable7get_gidEijm'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'__dynamic_cast'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZNK4nest12ConnectionIDeqERKS0_'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZN4nest17ConnectionManager17get_delay_checkerEv'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZN4nest12DelayChecker21assert_valid_delay_msEd'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC1Ev'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE7reserveEm'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6appendEPKcm'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6appendERKS4_'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZN4Name6insertERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZSt18_Rb_tree_incrementPSt18_Rb_tree_node_base'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZN4nest4Time5Range12STEPS_PER_MSE'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZN4nest5names6targetE'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZN4nest5names6weightE'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZN4nest5names7size_ofE'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZN4nest5names5delayE'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZN4nest4Time5Range11MS_PER_STEPE'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZN4nest5names5rportE'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZStL19piecewise_construct'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZN4nest13KernelManager24kernel_manager_instance_E'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZN10Dictionary9VoidTokenE'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZN4nest10NestModule14ConnectionTypeE'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZTV5Datum' in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZN14AggregateDatumIN4nest12ConnectionIDEXadL_ZNS0_10NestModule14ConnectionTypeEEEE6memoryE'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
nvlink error :
Undefined
reference to
'_ZL14max_block_size'
in
'/tmp/event_delivery_manager-656e32.cubin'<br>
clang-11: error:
nvlink command
failed with exit
code 255 (use -v
to see invocation)<br>
make[2]: ***
[nestkernel/libnestkernel.so]
Error 255<br>
make[1]: ***
[nestkernel/CMakeFiles/nestkernel.dir/all]
Error 2<br>
make: *** [all]
Error 2
<div><br>
</div>
<div>What should I
do?</div>
</div>
<br>
<fieldset></fieldset>
<pre>_______________________________________________
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</pre>
</blockquote>
</div>
</blockquote>
</div>
</blockquote>
</div>
</blockquote>
</div>
</div>
</blockquote>
</div>
</blockquote>
</div>
</blockquote>
</div>
</blockquote>
</div>
</div>
</blockquote>
</div>
</blockquote>
</div>
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</blockquote>
</div>
</blockquote></div>