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Hope this helps anyone, as it insanely irritated me as changing up the environment path on windows did nothing.
== Dynamically Allocated Shared Memory ==
Here is a roundabout way of working around the shared memory limitations of your graphics card.
The idea is to send in chunks that your kernel can handle, then keep on sending chunks until there are none to be sent. The address being sent is also being shifted based on the chunk size.
<div style='color:#000000;background:#ffffff;'>
CHUNKSIZE <span style='color:#808030; '>=</span> <span style='color:#008c00; '>512</span><span style='color:#800080; '>;</span>
shared_ <span style='color:#808030; '>=</span> CHUNKSIZE <span style='color:#808030; '>*</span> <span style='color:#800000; font-weight:bold; '>sizeof</span><span style='color:#808030; '>(</span>SimBody<span style='color:#808030; '>)</span><span style='color:#800080; '>;</span>
<span style='color:#800000; font-weight:bold; '>while</span> <span style='color:#808030; '>(</span>chunks <span style='color:#808030; '>></span> <span style='color:#008c00; '>0</span><span style='color:#808030; '>)</span>
<span style='color:#800080; '>{</span>
BodyArray ba <span style='color:#808030; '>=</span> <span style='color:#800080; '>{</span> <span style='color:#808030; '>&</span>arr<span style='color:#808030; '>.</span><span style='color:#603000; '>array</span><span style='color:#808030; '>[</span>index<span style='color:#808030; '>]</span><span style='color:#808030; '>,</span> CHUNKSIZE <span style='color:#800080; '>}</span><span style='color:#800080; '>;</span>
SimCalc <span style='color:#808030; '><</span><span style='color:#808030; '><</span><span style='color:#808030; '><</span> numBlocks_<span style='color:#808030; '>,</span> numThreads_<span style='color:#808030; '>,</span> shared_ <span style='color:#808030; '>></span><span style='color:#808030; '>></span><span style='color:#808030; '>></span><span style='color:#808030; '>(</span>ba<span style='color:#808030; '>)</span><span style='color:#800080; '>;</span>
cudaThreadSynchronize<span style='color:#808030; '>(</span><span style='color:#808030; '>)</span><span style='color:#800080; '>;</span>
SimTick <span style='color:#808030; '><</span><span style='color:#808030; '><</span><span style='color:#808030; '><</span> numBlocks_<span style='color:#808030; '>,</span> numThreads_<span style='color:#808030; '>,</span> shared_ <span style='color:#808030; '>></span><span style='color:#808030; '>></span><span style='color:#808030; '>></span><span style='color:#808030; '>(</span>ba<span style='color:#808030; '>,</span> timeStep<span style='color:#808030; '>)</span><span style='color:#800080; '>;</span>
cudaThreadSynchronize<span style='color:#808030; '>(</span><span style='color:#808030; '>)</span><span style='color:#800080; '>;</span>
index <span style='color:#808030; '>+</span><span style='color:#808030; '>=</span> CHUNKSIZE<span style='color:#800080; '>;</span>
<span style='color:#808030; '>-</span><span style='color:#808030; '>-</span>chunks<span style='color:#800080; '>;</span>
<span style='color:#800080; '>}</span>
chunks <span style='color:#808030; '>=</span> arr<span style='color:#808030; '>.</span>size <span style='color:#808030; '>/</span> CHUNKSIZE <span style='color:#808030; '>+</span> <span style='color:#008c00; '>1</span><span style='color:#800080; '>;</span>
index <span style='color:#808030; '>=</span> <span style='color:#008c00; '>0</span><span style='color:#800080; '>;</span>
</div>
= Converting Fortran Code to C Code =