== FLEXPART Performance ==

This is the place to document performance tests with different hardware, compilers, compiler options, and run configurations so that we can learn from each other and avoid reinventing the wheel. Please document all relevant parameters.

||= '''Hardware''' =||= '''Version''' =||= '''Compilation'''=||= '''Setup''' =||= '''Runtime''' =||= Note=||
|| Xeon E5-2690 (A)||Fp8.2.3fr||  if13 (O2)|| AL-500-300 || '''21:29'''|| 
|| Xeon E5-2690 (A)||Fp8.2.3fr|| if13 (O3a)|| AL-500-300 || '''21:05'''|| 
|| Xeon E5-2697 (B)||Fp8.2.3fr|| if13 (O3a)|| AL-500-300 || '''20:50'''|| 
|| Xeon E5-2697 (B)||Fp8.2.3fr|| if13 (O3a)|| AL-250-300 || '''13:18'''|| /1/||

=== Hardware ===
 (A):: Intel(R) Xeon(R) CPU E5-2690 0 @ 2.90GHz, microcode 1808, cache size: 20480 KB. 2 CPUs with each 8 cores. 
 (B):: Intel(R) Xeon(R) CPU E5-2697 v3 @ 2.60GHz, microcode 57, cache size: 35840 KB. 2 CPUs with each 14 cores.

=== Compiler ===
'''if13''' ifort 13.1.2

=== Compiler Options ===
'''(O2)'''  `-O2 -mcmodel=medium`. grib_api-1.12.3 (compiled with ifort, `FCFLAGS = -g -O1 -fp-model precise`) [[BR]]
'''(O3a)''' `-ipo -O3 -mcmodel=medium -no-prec-div -opt-prefetch3`. grib_api-1.12.3

=== Fp Setup ===
 AL-500-300:: 500k particles, 300 s `lsynctime`. Output size 17M. (more details to come).
 AL-250-300:: 250k particles, otherwise  as AL-500-300
=== Notes ===
 /1/:: implies that in this case runtime = 13.3m + 0.03m * npart(k) (or +1.8 ms per particle)