Use LoopVectorization for downconvert

JuliaGNSS · Feb 17, 2020 · b734d80 · b734d80 · zsoerenm · Feb 17, 2020
1 parent 8ba27ac
commit b734d80
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Showing 2 changed files with 4 additions and 6 deletions.
diff --git a/Project.toml b/Project.toml
@@ -16,12 +16,12 @@ Unitful = "1986cc42-f94f-5a68-af5c-568840ba703d"
 [compat]
 DocStringExtensions = "0.6, 0.7, 0.8"
 GNSSSignals = "0.11"
-LoopVectorization = "0.6"
+LoopVectorization = "0.6.11"
 StaticArrays = "0.9, 0.10, 0.11, 0.12"
 StructArrays = "0.4"
 TrackingLoopFilters = "0.1"
 Unitful = "0.12, 0.13, 0.14, 0.15, 0.16, 0.17, 0.18, 1.0"
-julia = "1.1"
+julia = "1"
 
 [extras]
 Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"

diff --git a/src/downconvert.jl b/src/downconvert.jl
@@ -8,8 +8,7 @@ function downconvert!(
     start_sample::Integer,
     num_samples_left::Integer
 )
-    end_sample = num_samples_left + start_sample - 1
-    @inbounds for i = start_sample:end_sample
+    @avx for i = start_sample:num_samples_left + start_sample - 1
         downconverted_signal_re[i] = signal_re[i] * carrier_re[i] +
             signal_im[i] * carrier_im[i]
         downconverted_signal_im[i] = signal_im[i] * carrier_re[i] -
@@ -27,8 +26,7 @@ function downconvert!(
     start_sample::Integer,
     num_samples_left::Integer
 )
-    end_sample = num_samples_left + start_sample - 1
-    @inbounds for i = start_sample:end_sample, j = 1:size(signal_re, 2)
+    @avx for i = start_sample:num_samples_left + start_sample - 1, j = 1:size(signal_re, 2)
         # Calculate signal * carrier'
         downconverted_signal_re[i, j] = signal_re[i, j] * carrier_re[i] +
             signal_im[i, j] * carrier_im[i]