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gpu-compute: parametrize Wavefront size

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Eliminate the VSZ constant that defined the Wavefront size (in numbers of work
items); replaced it with a parameter in the GPU.py configuration script.
Changed all data structures dependent on the Wavefront size to be dynamically
sized. Legal values of Wavefront size are 16, 32, 64 for now and checked at
initialization time.
This commit is contained in:
jkalamat
2016-06-09 11:24:55 -04:00
parent e5b7b6780f
commit 3724fb15fa
25 changed files with 256 additions and 193 deletions
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3
configs/example/apu_se.py
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@@ -250,7 +250,8 @@ for i in xrange(n_cu):
vrfs = []
for j in xrange(options.simds_per_cu):
for k in xrange(shader.n_wf):
wavefronts.append(Wavefront(simdId = j, wf_slot_id = k))
wavefronts.append(Wavefront(simdId = j, wf_slot_id = k,
wfSize = options.wf_size))
vrfs.append(VectorRegisterFile(simd_id=j,
num_regs_per_simd=options.vreg_file_size))
compute_units[-1].wavefronts = wavefronts