PTX analysis

[吴昊]

Hi all,

I want do a analysis on PTX code to gather the instruction mixture. Do Ocelot can help me?

Or I just can write a program to do this? I can just count the instructions.

For example, if the loop will be executed in nk times, how many add, mul, ld/st instructions respectively? 

Is the execution time of add.s64 2 times of add.s32 ?

BB0_3:

add.s32 %r21, %r23, %r3;

mul.wide.s32 %rd6, %r21, 4;

add.s64 %rd7, %rd2, %rd6;

ld.global.f32 %f7, [%rd7];

mul.f32 %f8, %f7, %f4;

mad.lo.s32 %r22, %r23, %r6, %r1;

mul.wide.s32 %rd8, %r22, 4;

add.s64 %rd9, %rd3, %rd8;

ld.global.f32 %f9, [%rd9];

fma.rn.f32 %f10, %f8, %f9, %f10;

st.global.f32 [%rd1], %f10;

add.s32 %r23, %r23, 1;

setp.lt.s32 %p5, %r23, %r7;

@%p5 bra BB0_3;

[Si Li]

I think WarpSynchronous will do what you want. Take a look here:

https://code.google.com/p/gpuocelot/wiki/OcelotConfigFile