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code to remove the trailing newline character from the C++ name de-mangling fix. Also, fixed small bug with previous commit
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with spaces (e.g., using templates)
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Remove redudant definition for some tokens which confuses the parser
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 18462]
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[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 18452]
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safeness of fprintf.
Fix is to explicitly tell fprintf that the to_string.c_str() result is a string.
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 15312]
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variable.
I thought the init() function where dynamic_warp_id is initialized was called on construction.
It is not. Added a default value in the constructor. Maybe a code review would have caught this :)
Also cleaned up some weird code I had in the ptx_instruction::to_string().
Also trimmed out tabs from our stored source line string so it is much more readable on print
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 15310]
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The "_" "null" register potentially generated by ptx and intentionally generated by ptxplus was being initialized without a
type. This caused the parser to think it was not a register.
Fix is to allow the parser to think of it as register, but ensure the arch-sim does not by adding a flag indicating
that it is special.
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 15305]
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//depot/gpgpu_sim_research/fermi_tim/...
to //depot/gpgpu_sim_research/fermi/...
Integrating CLs up to 15295. Descriptions of these CL's are included.
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A couple changes to aeriel-vision for warp issue plot support
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More arielvision changes to support the variable-entry length stacked bar chart
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Properly printing the right resolution of dynamic warp ids
***.
Generalized the scheduler code and added detailed statistics for which warps issue each cycle.
Verified the execution of the LRR scheduler - still have to get the two level scheduler to work.
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Implementing the 2lvl scehduler has it has been originally coded.
LRR on both the inner and outer levels
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Adding in a debug tracing system to GPGPU-Sim.
I am sick of writing debug code - then having to comment out, ifdef out or delete it to checkin.
This also allows for print streams so the user can decided which traces they would like to see.
Every print in GPGPU-Sim should go through this system - then it will be really easy to only get the information you want and more importantly people will (a) write and (b) checkin code that actually profiles what they are building.
Reading tracefiles is superiour in many ways to single stepping since you can print the world and just vet the logfile for what you need.
This also fascilitates advice from the Debugging Rules! book which states that you should never throw away a debugging tool. Having debug prints that don't get thrown away is big.
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Allowing the trace to be specified in the Make.
Run Make TRACE=0 to compile the code without any traces
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Allowing prints from the performance sim to get the actual ptx instruction text
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Getting the two level scheduler to actaully work...
What is released in fermi does not work at all - it effectively performs "static warp limit" from my CCWS paper.
Warps are never demoted from the active list since the functionality checking to see if they are waiting on a longop is completly broken.
Maybe if the original author had access to the tracing functions this would not have happened.
The islongop test was completely broken. It did not mark the register as used, it marked the register number in the instruction as used.
For example if this instruction was creating a long op:
ld r6 [r1]
It would mark register 0 as waiting for a long op (since it is register 0 of the two registers in this instruction), not register 6.
Additionally, whenever ANY instruction from a warp releases registers, ALL the longops being tracked for this warp get cleared....
The only way anyone ever thought this worked is if they did not test it....
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Reworking the warp schedulers to share common code.
Making the GTX480 use gto by default. I am not sure wht they really use, but it really can't be LRR.
Also adding in a new file for custom shared trace defines. These are useful when you want a print that has some
additional criteria or information printed.
Verified that the schedulers all work to a first order based on traces.
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Making it so you can run the stats collection scripts from any directory.
Also allow the caller to specify a stats file instead of just assume its always the same one
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 15296]
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a memory instruction in the timing model.
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 14538]
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[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 13996]
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(not tested). Reducing number of iterations for radixSortThrust for regression.
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 13993]
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[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 13410]
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informative)
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 13399]
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- removing an assert that gets triggered when using CUDA 4.2
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 12865]
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(expected). The key is that the missing function is now in place. Also removed reference to print_shader_cycle_distro() (this is deprecated by AerialVision).
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 11346]
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[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 9872]
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[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 9687]
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[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 8287]
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except it reads and stores from two adjacent registers instead of a single 64 bit register. ".ff64" instructions are now printed in decuda_to_ptxplus. Support in the simulator for ".ff64" has been added but it is untested.
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 8278]
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[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 8179]
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2. update texture to bypass ROP-delay queue... correlation now 0.9592
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 7912]
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configuration
components of this class.
2. clock memory pipeline no. subwarp times for each shader clock and increase
rob-size for texture cache (trying to improve correlation, currently at 0.9218)
3. start to modify shader stats to add back features for visualizer (warp
divergence distribution kind of working again)
passing cuda 3.1 regression and ptxplus correlation tests
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 7909]
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passing CUDA 3.1 and ptxplus correlation
correlation back to around 0.89 on ptxplus vs quadro fx5800
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 7898]
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(and parse it before creating the simulator objects).
2. creating core_config to hold only features of a shader_core that are high
level enough either (a) the functional simulator needs to know about them,
or (b) they affect memory *access* generation.
3. in config files only (so far) separate out notion of write-{through,back},
from notion of when a line is allocated... will use this to distinguish
different types of caches.
passing CUDA 3.1 regression
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 7870]
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2. refactor memory stage into a ld/st function unit
3. refactor memory access generation (moved into warp_inst_t class)
the above should make supporting fermi uarch much easier
passing CUDA 3.1 regression
still need to...
(a) update scoreboard to keep count of outstanding memory requests
and use operand collector for writebacks into register file
(b) add back shared memory pipeline delay
(c) remove use of MSHR's for non-cached global/local accesses
(d) replace texture cache with a split tag/data array pipe
(e) re-implement memory_partition stuff so it makes more sense
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 7844]
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entirely)
2. some bug fixes for warp_inst_t
3. creating a new class, gpgpu_t, which contains the functional "memory" state visible
to all threads running on a GPU (doing this as part of my continuing effort to hunt
down and eradicate every global variable that is not the top level "the gpu")
4. other misc. changes
Almost passing CUDA 3.1 regression? oclHistogram keeps failing under torque, but
does not fail when run on the command line from the same directory.
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 7827]
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refactoring: create warp_inst_t that provides notion of a group of scalar instructions
traveling down the pipeline.
delete DWF
delete MIMD
delete warp_tracker
delete old writeback stage, replace it with a stub that just writes back everything
delete old pipeline model
current status: MSHR's need to change to deal with the new structure
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 7814]
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[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 7811]
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2. edit to 3dfd to enable execution on Quadro
3. update script to not pass device directly to 3dfd on command line (which it does not support)
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 7810]
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(i'll use "fermi" for more disruptive changes to the pipeline model such
as updating the MSHRs and getting rid of the warp tracker, ripping out DWF, etc...)
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 7805]
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this integrates the ptxplus functional model changes, but has only been
verified with CUDA 3.1 PTX regressions (which pass)
still need to verify ptxplus itself is working in this branch
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 7435]
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changes required to do this (this enables oclReduction SDK 3.1 to pass
and is a prerequisite to Fermi style concurrent kernel launching)
- separate kernel launch for cuda and opencl (and init_grid functions)
- add pgm_info structure for holding kernel function_info pointer in
_cl_program object after ptx compilation
** added support for clEnqueueNDRangeKernel with local_work_size==NULL
which is part of OpenCL spec and used in oclSortingNetworks (however,
this is a braindead implementation that only handles the case where
global_work_size[0] is smaller than the max number of threads per
shader; moreover oclSortingNetworks is still not working but for what
looks like another reason)
** refactoring / cleanup
- g_global_symbol_table made static to ptx_parser.cc
- remove g_kernel_name_to_symtab_lookup (not really being used)
- moving various function prototypes into headers (e.g., if foo() defined
in bar.cc, then place prototype in bar.h)
- adding icnt_reg_options()
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 7168]
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[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 7167]
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[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 7166]
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[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 7165]
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[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 7164]
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[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 7160]
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- add ldu support (just use ld for now)
- get rid of asserts for .const[n]
- status:
cuda sdk 3.1 dct8x8, eigenvalues, MersenneTwister, reduction, scan still running (too slow)
ocl sdk 3.1 oclQuasirandomGenerator still running (too slow)
ocl sdk 3.1 oclReduction fail comparison (cuda 3.1)
ocl sdk 3.1 oclMatrixMul exits mid computation
ocl sdk 3.1 oclTranspose hits "clCreateBuffer - buffer already created for this host variable"
ocl sdk 3.1 oclSortingNetworks fails w/ message about min workgroup size
remaining 30 tests pass
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 6927]
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[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 6907]
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example included in this CL)
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 6886]
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- add support to call_impl for passing values in through local param space (need to add support for return)
- track local framesize during ptx parsing / update local stack-pointer during call/return
- detect appropriate param space for ld.param (and st.param) depending upon address symbol's scope
- putting back the crazy math for local mem allocation (seems to be required)
- bug fix for global byte array initialization
- force ld and st w/o space specifier to be generic_space
- make type_decode method of type_info_key
- adjust debug printing so listing of code and CFG information requires higher numbers (100 and 50)
- local param ld/st accesses treated like local ld/st for timing model
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 6878]
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(still need to determine framesize during parsing, and need to support
alternate mode were stack pointer is explicit register a la zev...)
- define local param mapping to local memory for functional execution
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 6875]
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local storage for local param memory)
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 6871]
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parameter spaces (kernel parameters are conceptually different from
function parameters, but PTX only has one .param keyword)
- removing more dead code
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 6870]
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[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 6869]
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- add support for parsing cache operators (still need to pass to timing model)
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 6868]
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- modify template to use printf from kernel (this works on our Fermi card--want it working on simulator for debugging)
- add support for extern function declarations (so don't try to assemble them)... printf is extern
[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 6862]
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[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 6857]
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[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 6829]
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